Home / 42,529.04-63,800.42-12,939.91

Finding the Fourth Proportional to 42,529.04, 63,800.42 and 12,939.91

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Solution

The fourth proportional to 42,529.04, 63,800.42 and 12,939.91 is: 19,411.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,529.04 : 63,800.42 = 12,939.91 : x
  2. Step 2: Convert to fraction form
    42,529.04/63,800.42 = 12,939.91/x
  3. Step 3: Cross multiply
    42,529.04x = 63,800.42 × 12,939.91
  4. Step 4: Simplify right side
    42,529.04x = 825,571,692.76
  5. Step 5: Solve for x
    x = 825,571,692.76/42,529.04
  6. Step 6: Final answer
    x = 19,411.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.