Home / 21,152.14-29,112.28-18,134.08

Finding the Fourth Proportional to 21,152.14, 29,112.28 and 18,134.08

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Solution

The fourth proportional to 21,152.14, 29,112.28 and 18,134.08 is: 24,958.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152.14 : 29,112.28 = 18,134.08 : x
  2. Step 2: Convert to fraction form
    21,152.14/29,112.28 = 18,134.08/x
  3. Step 3: Cross multiply
    21,152.14x = 29,112.28 × 18,134.08
  4. Step 4: Simplify right side
    21,152.14x = 527,924,414.50
  5. Step 5: Solve for x
    x = 527,924,414.50/21,152.14
  6. Step 6: Final answer
    x = 24,958.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.