Home / 21,299.16-31,948.74-6,507.28

Finding the Fourth Proportional to 21,299.16, 31,948.74 and 6,507.28

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Solution

The fourth proportional to 21,299.16, 31,948.74 and 6,507.28 is: 9,760.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,299.16 : 31,948.74 = 6,507.28 : x
  2. Step 2: Convert to fraction form
    21,299.16/31,948.74 = 6,507.28/x
  3. Step 3: Cross multiply
    21,299.16x = 31,948.74 × 6,507.28
  4. Step 4: Simplify right side
    21,299.16x = 207,899,396.83
  5. Step 5: Solve for x
    x = 207,899,396.83/21,299.16
  6. Step 6: Final answer
    x = 9,760.92

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Similar ratio
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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.