Home / 39,581.43-54,622.45-21,432.35

Finding the Fourth Proportional to 39,581.43, 54,622.45 and 21,432.35

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Solution

The fourth proportional to 39,581.43, 54,622.45 and 21,432.35 is: 29,576.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,581.43 : 54,622.45 = 21,432.35 : x
  2. Step 2: Convert to fraction form
    39,581.43/54,622.45 = 21,432.35/x
  3. Step 3: Cross multiply
    39,581.43x = 54,622.45 × 21,432.35
  4. Step 4: Simplify right side
    39,581.43x = 1,170,687,322.35
  5. Step 5: Solve for x
    x = 1,170,687,322.35/39,581.43
  6. Step 6: Final answer
    x = 29,576.68

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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.