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Finding the Fourth Proportional to 29,490.80, 44,135.40 and 17,812.40

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Solution

The fourth proportional to 29,490.80, 44,135.40 and 17,812.40 is: 26,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,490.80 : 44,135.40 = 17,812.40 : x
  2. Step 2: Convert to fraction form
    29,490.80/44,135.40 = 17,812.40/x
  3. Step 3: Cross multiply
    29,490.80x = 44,135.40 × 17,812.40
  4. Step 4: Simplify right side
    29,490.80x = 786,157,398.96
  5. Step 5: Solve for x
    x = 786,157,398.96/29,490.80
  6. Step 6: Final answer
    x = 26,657.72

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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.