Home / 20,045.67-30,075.79-9,518.91

Finding the Fourth Proportional to 20,045.67, 30,075.79 and 9,518.91

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Solution

The fourth proportional to 20,045.67, 30,075.79 and 9,518.91 is: 14,281.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.67 : 30,075.79 = 9,518.91 : x
  2. Step 2: Convert to fraction form
    20,045.67/30,075.79 = 9,518.91/x
  3. Step 3: Cross multiply
    20,045.67x = 30,075.79 × 9,518.91
  4. Step 4: Simplify right side
    20,045.67x = 286,288,738.19
  5. Step 5: Solve for x
    x = 286,288,738.19/20,045.67
  6. Step 6: Final answer
    x = 14,281.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.