Home / 29,042.08-40,086.60-18,972.12

Finding the Fourth Proportional to 29,042.08, 40,086.60 and 18,972.12

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Solution

The fourth proportional to 29,042.08, 40,086.60 and 18,972.12 is: 26,187.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,042.08 : 40,086.60 = 18,972.12 : x
  2. Step 2: Convert to fraction form
    29,042.08/40,086.60 = 18,972.12/x
  3. Step 3: Cross multiply
    29,042.08x = 40,086.60 × 18,972.12
  4. Step 4: Simplify right side
    29,042.08x = 760,527,785.59
  5. Step 5: Solve for x
    x = 760,527,785.59/29,042.08
  6. Step 6: Final answer
    x = 26,187.10

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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.