Home / 39,432.57-54,417.77-21,528.33

Finding the Fourth Proportional to 39,432.57, 54,417.77 and 21,528.33

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Solution

The fourth proportional to 39,432.57, 54,417.77 and 21,528.33 is: 29,709.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,432.57 : 54,417.77 = 21,528.33 : x
  2. Step 2: Convert to fraction form
    39,432.57/54,417.77 = 21,528.33/x
  3. Step 3: Cross multiply
    39,432.57x = 54,417.77 × 21,528.33
  4. Step 4: Simplify right side
    39,432.57x = 1,171,523,330.69
  5. Step 5: Solve for x
    x = 1,171,523,330.69/39,432.57
  6. Step 6: Final answer
    x = 29,709.54

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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.