Home / 38,557.12-53,201.88-21,561.70

Finding the Fourth Proportional to 38,557.12, 53,201.88 and 21,561.70

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Solution

The fourth proportional to 38,557.12, 53,201.88 and 21,561.70 is: 29,751.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,557.12 : 53,201.88 = 21,561.70 : x
  2. Step 2: Convert to fraction form
    38,557.12/53,201.88 = 21,561.70/x
  3. Step 3: Cross multiply
    38,557.12x = 53,201.88 × 21,561.70
  4. Step 4: Simplify right side
    38,557.12x = 1,147,122,976.00
  5. Step 5: Solve for x
    x = 1,147,122,976.00/38,557.12
  6. Step 6: Final answer
    x = 29,751.26

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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.