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Finding the Fourth Proportional to 32,989.50, 49,510.80 and 18,766.71

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Solution

The fourth proportional to 32,989.50, 49,510.80 and 18,766.71 is: 28,165.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,989.50 : 49,510.80 = 18,766.71 : x
  2. Step 2: Convert to fraction form
    32,989.50/49,510.80 = 18,766.71/x
  3. Step 3: Cross multiply
    32,989.50x = 49,510.80 × 18,766.71
  4. Step 4: Simplify right side
    32,989.50x = 929,154,825.47
  5. Step 5: Solve for x
    x = 929,154,825.47/32,989.50
  6. Step 6: Final answer
    x = 28,165.17

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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.