Home / 42,385.95-63,581.19-12,803.04

Finding the Fourth Proportional to 42,385.95, 63,581.19 and 12,803.04

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Solution

The fourth proportional to 42,385.95, 63,581.19 and 12,803.04 is: 19,205.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,385.95 : 63,581.19 = 12,803.04 : x
  2. Step 2: Convert to fraction form
    42,385.95/63,581.19 = 12,803.04/x
  3. Step 3: Cross multiply
    42,385.95x = 63,581.19 × 12,803.04
  4. Step 4: Simplify right side
    42,385.95x = 814,032,518.82
  5. Step 5: Solve for x
    x = 814,032,518.82/42,385.95
  6. Step 6: Final answer
    x = 19,205.24

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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.