Home / 21,474.47-29,624.56-14,307.72

Finding the Fourth Proportional to 21,474.47, 29,624.56 and 14,307.72

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Solution

The fourth proportional to 21,474.47, 29,624.56 and 14,307.72 is: 19,737.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.47 : 29,624.56 = 14,307.72 : x
  2. Step 2: Convert to fraction form
    21,474.47/29,624.56 = 14,307.72/x
  3. Step 3: Cross multiply
    21,474.47x = 29,624.56 × 14,307.72
  4. Step 4: Simplify right side
    21,474.47x = 423,859,909.60
  5. Step 5: Solve for x
    x = 423,859,909.60/21,474.47
  6. Step 6: Final answer
    x = 19,737.85

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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.