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Finding the Fourth Proportional to 37,139.60, 55,660.80 and 14,934.80

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Solution

The fourth proportional to 37,139.60, 55,660.80 and 14,934.80 is: 22,382.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,139.60 : 55,660.80 = 14,934.80 : x
  2. Step 2: Convert to fraction form
    37,139.60/55,660.80 = 14,934.80/x
  3. Step 3: Cross multiply
    37,139.60x = 55,660.80 × 14,934.80
  4. Step 4: Simplify right side
    37,139.60x = 831,282,915.84
  5. Step 5: Solve for x
    x = 831,282,915.84/37,139.60
  6. Step 6: Final answer
    x = 22,382.66

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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.