Home / 42,212.56-63,300.84-12,629.92

Finding the Fourth Proportional to 42,212.56, 63,300.84 and 12,629.92

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Solution

The fourth proportional to 42,212.56, 63,300.84 and 12,629.92 is: 18,939.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,212.56 : 63,300.84 = 12,629.92 : x
  2. Step 2: Convert to fraction form
    42,212.56/63,300.84 = 12,629.92/x
  3. Step 3: Cross multiply
    42,212.56x = 63,300.84 × 12,629.92
  4. Step 4: Simplify right side
    42,212.56x = 799,484,545.13
  5. Step 5: Solve for x
    x = 799,484,545.13/42,212.56
  6. Step 6: Final answer
    x = 18,939.49

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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.