Home / 28,294.24-39,047.76-15,718.96

Finding the Fourth Proportional to 28,294.24, 39,047.76 and 15,718.96

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Solution

The fourth proportional to 28,294.24, 39,047.76 and 15,718.96 is: 21,693.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294.24 : 39,047.76 = 15,718.96 : x
  2. Step 2: Convert to fraction form
    28,294.24/39,047.76 = 15,718.96/x
  3. Step 3: Cross multiply
    28,294.24x = 39,047.76 × 15,718.96
  4. Step 4: Simplify right side
    28,294.24x = 613,790,177.53
  5. Step 5: Solve for x
    x = 613,790,177.53/28,294.24
  6. Step 6: Final answer
    x = 21,693.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.