Home / 39,419.29-54,443.87-28,711.87

Finding the Fourth Proportional to 39,419.29, 54,443.87 and 28,711.87

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Solution

The fourth proportional to 39,419.29, 54,443.87 and 28,711.87 is: 39,655.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,419.29 : 54,443.87 = 28,711.87 : x
  2. Step 2: Convert to fraction form
    39,419.29/54,443.87 = 28,711.87/x
  3. Step 3: Cross multiply
    39,419.29x = 54,443.87 × 28,711.87
  4. Step 4: Simplify right side
    39,419.29x = 1,563,185,253.41
  5. Step 5: Solve for x
    x = 1,563,185,253.41/39,419.29
  6. Step 6: Final answer
    x = 39,655.34

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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.