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Finding the Fourth Proportional to 48,008.53, 72,012.78 and 12,948.17

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Solution

The fourth proportional to 48,008.53, 72,012.78 and 12,948.17 is: 19,422.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,008.53 : 72,012.78 = 12,948.17 : x
  2. Step 2: Convert to fraction form
    48,008.53/72,012.78 = 12,948.17/x
  3. Step 3: Cross multiply
    48,008.53x = 72,012.78 × 12,948.17
  4. Step 4: Simplify right side
    48,008.53x = 932,433,717.61
  5. Step 5: Solve for x
    x = 932,433,717.61/48,008.53
  6. Step 6: Final answer
    x = 19,422.25

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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.