Home / 20,943.74-31,407.31-9,248.76

Finding the Fourth Proportional to 20,943.74, 31,407.31 and 9,248.76

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Solution

The fourth proportional to 20,943.74, 31,407.31 and 9,248.76 is: 13,869.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943.74 : 31,407.31 = 9,248.76 : x
  2. Step 2: Convert to fraction form
    20,943.74/31,407.31 = 9,248.76/x
  3. Step 3: Cross multiply
    20,943.74x = 31,407.31 × 9,248.76
  4. Step 4: Simplify right side
    20,943.74x = 290,478,672.44
  5. Step 5: Solve for x
    x = 290,478,672.44/20,943.74
  6. Step 6: Final answer
    x = 13,869.47

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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.