Home / 18,428.67-25,432.65-13,944.66

Finding the Fourth Proportional to 18,428.67, 25,432.65 and 13,944.66

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Solution

The fourth proportional to 18,428.67, 25,432.65 and 13,944.66 is: 19,244.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.67 : 25,432.65 = 13,944.66 : x
  2. Step 2: Convert to fraction form
    18,428.67/25,432.65 = 13,944.66/x
  3. Step 3: Cross multiply
    18,428.67x = 25,432.65 × 13,944.66
  4. Step 4: Simplify right side
    18,428.67x = 354,649,657.15
  5. Step 5: Solve for x
    x = 354,649,657.15/18,428.67
  6. Step 6: Final answer
    x = 19,244.45

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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.