Home / 21,798.41-32,689.40-17,172.90

Finding the Fourth Proportional to 21,798.41, 32,689.40 and 17,172.90

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Solution

The fourth proportional to 21,798.41, 32,689.40 and 17,172.90 is: 25,752.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,798.41 : 32,689.40 = 17,172.90 : x
  2. Step 2: Convert to fraction form
    21,798.41/32,689.40 = 17,172.90/x
  3. Step 3: Cross multiply
    21,798.41x = 32,689.40 × 17,172.90
  4. Step 4: Simplify right side
    21,798.41x = 561,371,711.40
  5. Step 5: Solve for x
    x = 561,371,711.40/21,798.41
  6. Step 6: Final answer
    x = 25,752.88

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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.