Home / 20,271.60-27,867.42-17,428.50

Finding the Fourth Proportional to 20,271.60, 27,867.42 and 17,428.50

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Solution

The fourth proportional to 20,271.60, 27,867.42 and 17,428.50 is: 23,959.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.60 : 27,867.42 = 17,428.50 : x
  2. Step 2: Convert to fraction form
    20,271.60/27,867.42 = 17,428.50/x
  3. Step 3: Cross multiply
    20,271.60x = 27,867.42 × 17,428.50
  4. Step 4: Simplify right side
    20,271.60x = 485,687,329.47
  5. Step 5: Solve for x
    x = 485,687,329.47/20,271.60
  6. Step 6: Final answer
    x = 23,959.00

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.