Home / 25,142.56-34,677.28-18,425.68

Finding the Fourth Proportional to 25,142.56, 34,677.28 and 18,425.68

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Solution

The fourth proportional to 25,142.56, 34,677.28 and 18,425.68 is: 25,413.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,142.56 : 34,677.28 = 18,425.68 : x
  2. Step 2: Convert to fraction form
    25,142.56/34,677.28 = 18,425.68/x
  3. Step 3: Cross multiply
    25,142.56x = 34,677.28 × 18,425.68
  4. Step 4: Simplify right side
    25,142.56x = 638,952,464.55
  5. Step 5: Solve for x
    x = 638,952,464.55/25,142.56
  6. Step 6: Final answer
    x = 25,413.18

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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.