Home / 39,432.86-54,417.50-21,528.26

Finding the Fourth Proportional to 39,432.86, 54,417.50 and 21,528.26

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Solution

The fourth proportional to 39,432.86, 54,417.50 and 21,528.26 is: 29,709.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,432.86 : 54,417.50 = 21,528.26 : x
  2. Step 2: Convert to fraction form
    39,432.86/54,417.50 = 21,528.26/x
  3. Step 3: Cross multiply
    39,432.86x = 54,417.50 × 21,528.26
  4. Step 4: Simplify right side
    39,432.86x = 1,171,514,088.55
  5. Step 5: Solve for x
    x = 1,171,514,088.55/39,432.86
  6. Step 6: Final answer
    x = 29,709.08

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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.