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Finding the Fourth Proportional to 21,951.60, 30,254.04 and 17,165.04

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Solution

The fourth proportional to 21,951.60, 30,254.04 and 17,165.04 is: 23,657.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,951.60 : 30,254.04 = 17,165.04 : x
  2. Step 2: Convert to fraction form
    21,951.60/30,254.04 = 17,165.04/x
  3. Step 3: Cross multiply
    21,951.60x = 30,254.04 × 17,165.04
  4. Step 4: Simplify right side
    21,951.60x = 519,311,806.76
  5. Step 5: Solve for x
    x = 519,311,806.76/21,951.60
  6. Step 6: Final answer
    x = 23,657.13

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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.