Home / 29,420.17-40,598.15-15,991.31

Finding the Fourth Proportional to 29,420.17, 40,598.15 and 15,991.31

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Solution

The fourth proportional to 29,420.17, 40,598.15 and 15,991.31 is: 22,067.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,420.17 : 40,598.15 = 15,991.31 : x
  2. Step 2: Convert to fraction form
    29,420.17/40,598.15 = 15,991.31/x
  3. Step 3: Cross multiply
    29,420.17x = 40,598.15 × 15,991.31
  4. Step 4: Simplify right side
    29,420.17x = 649,217,623.62
  5. Step 5: Solve for x
    x = 649,217,623.62/29,420.17
  6. Step 6: Final answer
    x = 22,067.09

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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.