Home / 21,463.80-29,620.11-12,031.75

Finding the Fourth Proportional to 21,463.80, 29,620.11 and 12,031.75

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Solution

The fourth proportional to 21,463.80, 29,620.11 and 12,031.75 is: 16,603.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,463.80 : 29,620.11 = 12,031.75 : x
  2. Step 2: Convert to fraction form
    21,463.80/29,620.11 = 12,031.75/x
  3. Step 3: Cross multiply
    21,463.80x = 29,620.11 × 12,031.75
  4. Step 4: Simplify right side
    21,463.80x = 356,381,758.49
  5. Step 5: Solve for x
    x = 356,381,758.49/21,463.80
  6. Step 6: Final answer
    x = 16,603.86

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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.