Home / 42,266.28-63,396.90-12,684.66

Finding the Fourth Proportional to 42,266.28, 63,396.90 and 12,684.66

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Solution

The fourth proportional to 42,266.28, 63,396.90 and 12,684.66 is: 19,026.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,266.28 : 63,396.90 = 12,684.66 : x
  2. Step 2: Convert to fraction form
    42,266.28/63,396.90 = 12,684.66/x
  3. Step 3: Cross multiply
    42,266.28x = 63,396.90 × 12,684.66
  4. Step 4: Simplify right side
    42,266.28x = 804,168,121.55
  5. Step 5: Solve for x
    x = 804,168,121.55/42,266.28
  6. Step 6: Final answer
    x = 19,026.23

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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.