Home / 29,234.32-40,343.28-15,805.48

Finding the Fourth Proportional to 29,234.32, 40,343.28 and 15,805.48

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Solution

The fourth proportional to 29,234.32, 40,343.28 and 15,805.48 is: 21,811.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,234.32 : 40,343.28 = 15,805.48 : x
  2. Step 2: Convert to fraction form
    29,234.32/40,343.28 = 15,805.48/x
  3. Step 3: Cross multiply
    29,234.32x = 40,343.28 × 15,805.48
  4. Step 4: Simplify right side
    29,234.32x = 637,644,905.17
  5. Step 5: Solve for x
    x = 637,644,905.17/29,234.32
  6. Step 6: Final answer
    x = 21,811.52

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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.