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Finding the Fourth Proportional to 34,580.60, 47,720.60 and 19,473.20

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Solution

The fourth proportional to 34,580.60, 47,720.60 and 19,473.20 is: 26,872.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,580.60 : 47,720.60 = 19,473.20 : x
  2. Step 2: Convert to fraction form
    34,580.60/47,720.60 = 19,473.20/x
  3. Step 3: Cross multiply
    34,580.60x = 47,720.60 × 19,473.20
  4. Step 4: Simplify right side
    34,580.60x = 929,272,787.92
  5. Step 5: Solve for x
    x = 929,272,787.92/34,580.60
  6. Step 6: Final answer
    x = 26,872.66

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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.