Home / 18,211.48-25,138.90-14,233.88

Finding the Fourth Proportional to 18,211.48, 25,138.90 and 14,233.88

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Solution

The fourth proportional to 18,211.48, 25,138.90 and 14,233.88 is: 19,648.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.48 : 25,138.90 = 14,233.88 : x
  2. Step 2: Convert to fraction form
    18,211.48/25,138.90 = 14,233.88/x
  3. Step 3: Cross multiply
    18,211.48x = 25,138.90 × 14,233.88
  4. Step 4: Simplify right side
    18,211.48x = 357,824,085.93
  5. Step 5: Solve for x
    x = 357,824,085.93/18,211.48
  6. Step 6: Final answer
    x = 19,648.28

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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.