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Finding the Fourth Proportional to 34,659, 47,829.22 and 18,743.40

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Solution

The fourth proportional to 34,659, 47,829.22 and 18,743.40 is: 25,865.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,659 : 47,829.22 = 18,743.40 : x
  2. Step 2: Convert to fraction form
    34,659/47,829.22 = 18,743.40/x
  3. Step 3: Cross multiply
    34,659x = 47,829.22 × 18,743.40
  4. Step 4: Simplify right side
    34,659x = 896,482,155.29
  5. Step 5: Solve for x
    x = 896,482,155.29/34,659
  6. Step 6: Final answer
    x = 25,865.78

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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.