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Finding the Fourth Proportional to 18,272, 25,239.56 and 14,700.41

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Solution

The fourth proportional to 18,272, 25,239.56 and 14,700.41 is: 20,306.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272 : 25,239.56 = 14,700.41 : x
  2. Step 2: Convert to fraction form
    18,272/25,239.56 = 14,700.41/x
  3. Step 3: Cross multiply
    18,272x = 25,239.56 × 14,700.41
  4. Step 4: Simplify right side
    18,272x = 371,031,880.22
  5. Step 5: Solve for x
    x = 371,031,880.22/18,272
  6. Step 6: Final answer
    x = 20,306.04

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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.