Home / 28,318.14-39,107.34-23,331.78

Finding the Fourth Proportional to 28,318.14, 39,107.34 and 23,331.78

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Solution

The fourth proportional to 28,318.14, 39,107.34 and 23,331.78 is: 32,221.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318.14 : 39,107.34 = 23,331.78 : x
  2. Step 2: Convert to fraction form
    28,318.14/39,107.34 = 23,331.78/x
  3. Step 3: Cross multiply
    28,318.14x = 39,107.34 × 23,331.78
  4. Step 4: Simplify right side
    28,318.14x = 912,443,853.27
  5. Step 5: Solve for x
    x = 912,443,853.27/28,318.14
  6. Step 6: Final answer
    x = 32,221.18

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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.