Home / 28,117.81-38,724.06-23,358.70

Finding the Fourth Proportional to 28,117.81, 38,724.06 and 23,358.70

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Solution

The fourth proportional to 28,117.81, 38,724.06 and 23,358.70 is: 32,169.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.81 : 38,724.06 = 23,358.70 : x
  2. Step 2: Convert to fraction form
    28,117.81/38,724.06 = 23,358.70/x
  3. Step 3: Cross multiply
    28,117.81x = 38,724.06 × 23,358.70
  4. Step 4: Simplify right side
    28,117.81x = 904,543,700.32
  5. Step 5: Solve for x
    x = 904,543,700.32/28,117.81
  6. Step 6: Final answer
    x = 32,169.78

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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.