Home / 42,231.15-63,343.08-12,655.62

Finding the Fourth Proportional to 42,231.15, 63,343.08 and 12,655.62

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Solution

The fourth proportional to 42,231.15, 63,343.08 and 12,655.62 is: 18,982.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,231.15 : 63,343.08 = 12,655.62 : x
  2. Step 2: Convert to fraction form
    42,231.15/63,343.08 = 12,655.62/x
  3. Step 3: Cross multiply
    42,231.15x = 63,343.08 × 12,655.62
  4. Step 4: Simplify right side
    42,231.15x = 801,645,950.11
  5. Step 5: Solve for x
    x = 801,645,950.11/42,231.15
  6. Step 6: Final answer
    x = 18,982.34

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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.