Home / 21,074.40-31,613.28-6,283.04

Finding the Fourth Proportional to 21,074.40, 31,613.28 and 6,283.04

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Solution

The fourth proportional to 21,074.40, 31,613.28 and 6,283.04 is: 9,425.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.40 : 31,613.28 = 6,283.04 : x
  2. Step 2: Convert to fraction form
    21,074.40/31,613.28 = 6,283.04/x
  3. Step 3: Cross multiply
    21,074.40x = 31,613.28 × 6,283.04
  4. Step 4: Simplify right side
    21,074.40x = 198,627,502.77
  5. Step 5: Solve for x
    x = 198,627,502.77/21,074.40
  6. Step 6: Final answer
    x = 9,425.06

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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.