Home / 21,264.61-29,343.91-11,702.88

Finding the Fourth Proportional to 21,264.61, 29,343.91 and 11,702.88

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Solution

The fourth proportional to 21,264.61, 29,343.91 and 11,702.88 is: 16,149.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264.61 : 29,343.91 = 11,702.88 : x
  2. Step 2: Convert to fraction form
    21,264.61/29,343.91 = 11,702.88/x
  3. Step 3: Cross multiply
    21,264.61x = 29,343.91 × 11,702.88
  4. Step 4: Simplify right side
    21,264.61x = 343,408,257.46
  5. Step 5: Solve for x
    x = 343,408,257.46/21,264.61
  6. Step 6: Final answer
    x = 16,149.29

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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.