Home / 25,418.24-38,128.58-12,281.66

Finding the Fourth Proportional to 25,418.24, 38,128.58 and 12,281.66

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Solution

The fourth proportional to 25,418.24, 38,128.58 and 12,281.66 is: 18,423.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,418.24 : 38,128.58 = 12,281.66 : x
  2. Step 2: Convert to fraction form
    25,418.24/38,128.58 = 12,281.66/x
  3. Step 3: Cross multiply
    25,418.24x = 38,128.58 × 12,281.66
  4. Step 4: Simplify right side
    25,418.24x = 468,282,255.84
  5. Step 5: Solve for x
    x = 468,282,255.84/25,418.24
  6. Step 6: Final answer
    x = 18,423.08

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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.