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Finding the Fourth Proportional to 30,560.57, 45,766.79 and 15,528.13

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Solution

The fourth proportional to 30,560.57, 45,766.79 and 15,528.13 is: 23,254.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.57 : 45,766.79 = 15,528.13 : x
  2. Step 2: Convert to fraction form
    30,560.57/45,766.79 = 15,528.13/x
  3. Step 3: Cross multiply
    30,560.57x = 45,766.79 × 15,528.13
  4. Step 4: Simplify right side
    30,560.57x = 710,672,664.80
  5. Step 5: Solve for x
    x = 710,672,664.80/30,560.57
  6. Step 6: Final answer
    x = 23,254.56

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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.