Home / 39,432.07-54,417.08-21,527.83

Finding the Fourth Proportional to 39,432.07, 54,417.08 and 21,527.83

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Solution

The fourth proportional to 39,432.07, 54,417.08 and 21,527.83 is: 29,708.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,432.07 : 54,417.08 = 21,527.83 : x
  2. Step 2: Convert to fraction form
    39,432.07/54,417.08 = 21,527.83/x
  3. Step 3: Cross multiply
    39,432.07x = 54,417.08 × 21,527.83
  4. Step 4: Simplify right side
    39,432.07x = 1,171,481,341.99
  5. Step 5: Solve for x
    x = 1,171,481,341.99/39,432.07
  6. Step 6: Final answer
    x = 29,708.85

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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.