Home / 21,275.04-31,901.76-15,961.44

Finding the Fourth Proportional to 21,275.04, 31,901.76 and 15,961.44

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Solution

The fourth proportional to 21,275.04, 31,901.76 and 15,961.44 is: 23,934.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275.04 : 31,901.76 = 15,961.44 : x
  2. Step 2: Convert to fraction form
    21,275.04/31,901.76 = 15,961.44/x
  3. Step 3: Cross multiply
    21,275.04x = 31,901.76 × 15,961.44
  4. Step 4: Simplify right side
    21,275.04x = 509,198,028.13
  5. Step 5: Solve for x
    x = 509,198,028.13/21,275.04
  6. Step 6: Final answer
    x = 23,934.06

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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.