Home / 42,489.04-63,733.54-12,906.76

Finding the Fourth Proportional to 42,489.04, 63,733.54 and 12,906.76

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Solution

The fourth proportional to 42,489.04, 63,733.54 and 12,906.76 is: 19,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,489.04 : 63,733.54 = 12,906.76 : x
  2. Step 2: Convert to fraction form
    42,489.04/63,733.54 = 12,906.76/x
  3. Step 3: Cross multiply
    42,489.04x = 63,733.54 × 12,906.76
  4. Step 4: Simplify right side
    42,489.04x = 822,593,504.73
  5. Step 5: Solve for x
    x = 822,593,504.73/42,489.04
  6. Step 6: Final answer
    x = 19,360.13

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1.5x scale

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.