Home / 28,562.10-39,439.89-17,955.15

Finding the Fourth Proportional to 28,562.10, 39,439.89 and 17,955.15

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Solution

The fourth proportional to 28,562.10, 39,439.89 and 17,955.15 is: 24,793.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,562.10 : 39,439.89 = 17,955.15 : x
  2. Step 2: Convert to fraction form
    28,562.10/39,439.89 = 17,955.15/x
  3. Step 3: Cross multiply
    28,562.10x = 39,439.89 × 17,955.15
  4. Step 4: Simplify right side
    28,562.10x = 708,149,140.93
  5. Step 5: Solve for x
    x = 708,149,140.93/28,562.10
  6. Step 6: Final answer
    x = 24,793.31

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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.