Home / 38,387.94-57,589.47-13,435.08

Finding the Fourth Proportional to 38,387.94, 57,589.47 and 13,435.08

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Solution

The fourth proportional to 38,387.94, 57,589.47 and 13,435.08 is: 20,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,387.94 : 57,589.47 = 13,435.08 : x
  2. Step 2: Convert to fraction form
    38,387.94/57,589.47 = 13,435.08/x
  3. Step 3: Cross multiply
    38,387.94x = 57,589.47 × 13,435.08
  4. Step 4: Simplify right side
    38,387.94x = 773,719,136.61
  5. Step 5: Solve for x
    x = 773,719,136.61/38,387.94
  6. Step 6: Final answer
    x = 20,155.27

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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.