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Finding the Fourth Proportional to 42,340.90, 63,492.90 and 14,253.42

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Solution

The fourth proportional to 42,340.90, 63,492.90 and 14,253.42 is: 21,373.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,340.90 : 63,492.90 = 14,253.42 : x
  2. Step 2: Convert to fraction form
    42,340.90/63,492.90 = 14,253.42/x
  3. Step 3: Cross multiply
    42,340.90x = 63,492.90 × 14,253.42
  4. Step 4: Simplify right side
    42,340.90x = 904,990,858.35
  5. Step 5: Solve for x
    x = 904,990,858.35/42,340.90
  6. Step 6: Final answer
    x = 21,373.92

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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.