Home / 25,822.85-35,643.17-15,215.90

Finding the Fourth Proportional to 25,822.85, 35,643.17 and 15,215.90

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Solution

The fourth proportional to 25,822.85, 35,643.17 and 15,215.90 is: 21,002.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,822.85 : 35,643.17 = 15,215.90 : x
  2. Step 2: Convert to fraction form
    25,822.85/35,643.17 = 15,215.90/x
  3. Step 3: Cross multiply
    25,822.85x = 35,643.17 × 15,215.90
  4. Step 4: Simplify right side
    25,822.85x = 542,342,834.32
  5. Step 5: Solve for x
    x = 542,342,834.32/25,822.85
  6. Step 6: Final answer
    x = 21,002.44

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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.