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Finding the Fourth Proportional to 21,730.88, 32,602.24 and 9,251.52

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Solution

The fourth proportional to 21,730.88, 32,602.24 and 9,251.52 is: 13,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,730.88 : 32,602.24 = 9,251.52 : x
  2. Step 2: Convert to fraction form
    21,730.88/32,602.24 = 9,251.52/x
  3. Step 3: Cross multiply
    21,730.88x = 32,602.24 × 9,251.52
  4. Step 4: Simplify right side
    21,730.88x = 301,620,275.40
  5. Step 5: Solve for x
    x = 301,620,275.40/21,730.88
  6. Step 6: Final answer
    x = 13,879.80

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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.