Home / 18,415.76-25,423.38-14,373.92

Finding the Fourth Proportional to 18,415.76, 25,423.38 and 14,373.92

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Solution

The fourth proportional to 18,415.76, 25,423.38 and 14,373.92 is: 19,843.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.76 : 25,423.38 = 14,373.92 : x
  2. Step 2: Convert to fraction form
    18,415.76/25,423.38 = 14,373.92/x
  3. Step 3: Cross multiply
    18,415.76x = 25,423.38 × 14,373.92
  4. Step 4: Simplify right side
    18,415.76x = 365,433,630.25
  5. Step 5: Solve for x
    x = 365,433,630.25/18,415.76
  6. Step 6: Final answer
    x = 19,843.53

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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.