Home / 25,115.87-34,656.90-14,905.28

Finding the Fourth Proportional to 25,115.87, 34,656.90 and 14,905.28

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Solution

The fourth proportional to 25,115.87, 34,656.90 and 14,905.28 is: 20,567.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,115.87 : 34,656.90 = 14,905.28 : x
  2. Step 2: Convert to fraction form
    25,115.87/34,656.90 = 14,905.28/x
  3. Step 3: Cross multiply
    25,115.87x = 34,656.90 × 14,905.28
  4. Step 4: Simplify right side
    25,115.87x = 516,570,625.15
  5. Step 5: Solve for x
    x = 516,570,625.15/25,115.87
  6. Step 6: Final answer
    x = 20,567.50

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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.