Home / 25,705.47-38,562.12-15,855.33

Finding the Fourth Proportional to 25,705.47, 38,562.12 and 15,855.33

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Solution

The fourth proportional to 25,705.47, 38,562.12 and 15,855.33 is: 23,785.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,705.47 : 38,562.12 = 15,855.33 : x
  2. Step 2: Convert to fraction form
    25,705.47/38,562.12 = 15,855.33/x
  3. Step 3: Cross multiply
    25,705.47x = 38,562.12 × 15,855.33
  4. Step 4: Simplify right side
    25,705.47x = 611,415,138.10
  5. Step 5: Solve for x
    x = 611,415,138.10/25,705.47
  6. Step 6: Final answer
    x = 23,785.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.