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Finding the Fourth Proportional to 17,904.60, 24,699.60 and 15,280.20

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Solution

The fourth proportional to 17,904.60, 24,699.60 and 15,280.20 is: 21,079.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,904.60 : 24,699.60 = 15,280.20 : x
  2. Step 2: Convert to fraction form
    17,904.60/24,699.60 = 15,280.20/x
  3. Step 3: Cross multiply
    17,904.60x = 24,699.60 × 15,280.20
  4. Step 4: Simplify right side
    17,904.60x = 377,414,827.92
  5. Step 5: Solve for x
    x = 377,414,827.92/17,904.60
  6. Step 6: Final answer
    x = 21,079.21

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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.