Home / 28,288.56-39,037.20-15,713.04

Finding the Fourth Proportional to 28,288.56, 39,037.20 and 15,713.04

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Solution

The fourth proportional to 28,288.56, 39,037.20 and 15,713.04 is: 21,683.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288.56 : 39,037.20 = 15,713.04 : x
  2. Step 2: Convert to fraction form
    28,288.56/39,037.20 = 15,713.04/x
  3. Step 3: Cross multiply
    28,288.56x = 39,037.20 × 15,713.04
  4. Step 4: Simplify right side
    28,288.56x = 613,393,085.09
  5. Step 5: Solve for x
    x = 613,393,085.09/28,288.56
  6. Step 6: Final answer
    x = 21,683.43

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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.