Home / 25,454.25-35,126.87-15,518.25

Finding the Fourth Proportional to 25,454.25, 35,126.87 and 15,518.25

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Solution

The fourth proportional to 25,454.25, 35,126.87 and 15,518.25 is: 21,415.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,454.25 : 35,126.87 = 15,518.25 : x
  2. Step 2: Convert to fraction form
    25,454.25/35,126.87 = 15,518.25/x
  3. Step 3: Cross multiply
    25,454.25x = 35,126.87 × 15,518.25
  4. Step 4: Simplify right side
    25,454.25x = 545,107,472.79
  5. Step 5: Solve for x
    x = 545,107,472.79/25,454.25
  6. Step 6: Final answer
    x = 21,415.19

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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.