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Finding the Fourth Proportional to 45,238.40, 67,841.34 and 15,648.20

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Solution

The fourth proportional to 45,238.40, 67,841.34 and 15,648.20 is: 23,466.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,238.40 : 67,841.34 = 15,648.20 : x
  2. Step 2: Convert to fraction form
    45,238.40/67,841.34 = 15,648.20/x
  3. Step 3: Cross multiply
    45,238.40x = 67,841.34 × 15,648.20
  4. Step 4: Simplify right side
    45,238.40x = 1,061,594,856.59
  5. Step 5: Solve for x
    x = 1,061,594,856.59/45,238.40
  6. Step 6: Final answer
    x = 23,466.68

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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.