Home / 21,489.01-29,655.35-12,058.27

Finding the Fourth Proportional to 21,489.01, 29,655.35 and 12,058.27

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Solution

The fourth proportional to 21,489.01, 29,655.35 and 12,058.27 is: 16,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.01 : 29,655.35 = 12,058.27 : x
  2. Step 2: Convert to fraction form
    21,489.01/29,655.35 = 12,058.27/x
  3. Step 3: Cross multiply
    21,489.01x = 29,655.35 × 12,058.27
  4. Step 4: Simplify right side
    21,489.01x = 357,592,156.95
  5. Step 5: Solve for x
    x = 357,592,156.95/21,489.01
  6. Step 6: Final answer
    x = 16,640.70

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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.