Home / 29,402.36-40,587.72-18,789.56

Finding the Fourth Proportional to 29,402.36, 40,587.72 and 18,789.56

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Solution

The fourth proportional to 29,402.36, 40,587.72 and 18,789.56 is: 25,937.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,402.36 : 40,587.72 = 18,789.56 : x
  2. Step 2: Convert to fraction form
    29,402.36/40,587.72 = 18,789.56/x
  3. Step 3: Cross multiply
    29,402.36x = 40,587.72 × 18,789.56
  4. Step 4: Simplify right side
    29,402.36x = 762,625,400.20
  5. Step 5: Solve for x
    x = 762,625,400.20/29,402.36
  6. Step 6: Final answer
    x = 25,937.56

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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.