Home / 42,142.38-63,213.54-12,559.46

Finding the Fourth Proportional to 42,142.38, 63,213.54 and 12,559.46

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Solution

The fourth proportional to 42,142.38, 63,213.54 and 12,559.46 is: 18,839.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,142.38 : 63,213.54 = 12,559.46 : x
  2. Step 2: Convert to fraction form
    42,142.38/63,213.54 = 12,559.46/x
  3. Step 3: Cross multiply
    42,142.38x = 63,213.54 × 12,559.46
  4. Step 4: Simplify right side
    42,142.38x = 793,927,611.02
  5. Step 5: Solve for x
    x = 793,927,611.02/42,142.38
  6. Step 6: Final answer
    x = 18,839.17

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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.