Home / 43,209.27-59,639.90-28,139.49

Finding the Fourth Proportional to 43,209.27, 59,639.90 and 28,139.49

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Solution

The fourth proportional to 43,209.27, 59,639.90 and 28,139.49 is: 38,839.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,209.27 : 59,639.90 = 28,139.49 : x
  2. Step 2: Convert to fraction form
    43,209.27/59,639.90 = 28,139.49/x
  3. Step 3: Cross multiply
    43,209.27x = 59,639.90 × 28,139.49
  4. Step 4: Simplify right side
    43,209.27x = 1,678,236,228.95
  5. Step 5: Solve for x
    x = 1,678,236,228.95/43,209.27
  6. Step 6: Final answer
    x = 38,839.73

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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.