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Finding the Fourth Proportional to 21,498.88, 32,252.10 and 9,813.28

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Solution

The fourth proportional to 21,498.88, 32,252.10 and 9,813.28 is: 14,721.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,498.88 : 32,252.10 = 9,813.28 : x
  2. Step 2: Convert to fraction form
    21,498.88/32,252.10 = 9,813.28/x
  3. Step 3: Cross multiply
    21,498.88x = 32,252.10 × 9,813.28
  4. Step 4: Simplify right side
    21,498.88x = 316,498,887.89
  5. Step 5: Solve for x
    x = 316,498,887.89/21,498.88
  6. Step 6: Final answer
    x = 14,721.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.