Home / 38,075.67-52,542.72-21,078.72

Finding the Fourth Proportional to 38,075.67, 52,542.72 and 21,078.72

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Solution

The fourth proportional to 38,075.67, 52,542.72 and 21,078.72 is: 29,087.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,075.67 : 52,542.72 = 21,078.72 : x
  2. Step 2: Convert to fraction form
    38,075.67/52,542.72 = 21,078.72/x
  3. Step 3: Cross multiply
    38,075.67x = 52,542.72 × 21,078.72
  4. Step 4: Simplify right side
    38,075.67x = 1,107,533,559.00
  5. Step 5: Solve for x
    x = 1,107,533,559.00/38,075.67
  6. Step 6: Final answer
    x = 29,087.69

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Half scale
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Double scale
Find fourth proportional to 38,076.67, 52,544.10 and 21,079.72
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.