Home / 39,747.20-54,856.32-25,641.05

Finding the Fourth Proportional to 39,747.20, 54,856.32 and 25,641.05

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Solution

The fourth proportional to 39,747.20, 54,856.32 and 25,641.05 is: 35,387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,747.20 : 54,856.32 = 25,641.05 : x
  2. Step 2: Convert to fraction form
    39,747.20/54,856.32 = 25,641.05/x
  3. Step 3: Cross multiply
    39,747.20x = 54,856.32 × 25,641.05
  4. Step 4: Simplify right side
    39,747.20x = 1,406,573,643.94
  5. Step 5: Solve for x
    x = 1,406,573,643.94/39,747.20
  6. Step 6: Final answer
    x = 35,387.99

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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.