Home / 39,060.12-53,902.94-21,155.18

Finding the Fourth Proportional to 39,060.12, 53,902.94 and 21,155.18

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Solution

The fourth proportional to 39,060.12, 53,902.94 and 21,155.18 is: 29,194.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,060.12 : 53,902.94 = 21,155.18 : x
  2. Step 2: Convert to fraction form
    39,060.12/53,902.94 = 21,155.18/x
  3. Step 3: Cross multiply
    39,060.12x = 53,902.94 × 21,155.18
  4. Step 4: Simplify right side
    39,060.12x = 1,140,326,398.23
  5. Step 5: Solve for x
    x = 1,140,326,398.23/39,060.12
  6. Step 6: Final answer
    x = 29,194.13

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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.