Home / 29,305.91-40,442.09-15,877.49

Finding the Fourth Proportional to 29,305.91, 40,442.09 and 15,877.49

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Solution

The fourth proportional to 29,305.91, 40,442.09 and 15,877.49 is: 21,910.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,305.91 : 40,442.09 = 15,877.49 : x
  2. Step 2: Convert to fraction form
    29,305.91/40,442.09 = 15,877.49/x
  3. Step 3: Cross multiply
    29,305.91x = 40,442.09 × 15,877.49
  4. Step 4: Simplify right side
    29,305.91x = 642,118,597.96
  5. Step 5: Solve for x
    x = 642,118,597.96/29,305.91
  6. Step 6: Final answer
    x = 21,910.89

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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.