Home / 42,657.56-63,990.18-11,492.12

Finding the Fourth Proportional to 42,657.56, 63,990.18 and 11,492.12

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Solution

The fourth proportional to 42,657.56, 63,990.18 and 11,492.12 is: 17,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,657.56 : 63,990.18 = 11,492.12 : x
  2. Step 2: Convert to fraction form
    42,657.56/63,990.18 = 11,492.12/x
  3. Step 3: Cross multiply
    42,657.56x = 63,990.18 × 11,492.12
  4. Step 4: Simplify right side
    42,657.56x = 735,382,827.38
  5. Step 5: Solve for x
    x = 735,382,827.38/42,657.56
  6. Step 6: Final answer
    x = 17,239.21

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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.