Home / 39,438.59-54,422.84-21,532.52

Finding the Fourth Proportional to 39,438.59, 54,422.84 and 21,532.52

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Solution

The fourth proportional to 39,438.59, 54,422.84 and 21,532.52 is: 29,713.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,438.59 : 54,422.84 = 21,532.52 : x
  2. Step 2: Convert to fraction form
    39,438.59/54,422.84 = 21,532.52/x
  3. Step 3: Cross multiply
    39,438.59x = 54,422.84 × 21,532.52
  4. Step 4: Simplify right side
    39,438.59x = 1,171,860,510.98
  5. Step 5: Solve for x
    x = 1,171,860,510.98/39,438.59
  6. Step 6: Final answer
    x = 29,713.55

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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.