Home / 18,218.80-25,112.40-14,232.96

Finding the Fourth Proportional to 18,218.80, 25,112.40 and 14,232.96

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Solution

The fourth proportional to 18,218.80, 25,112.40 and 14,232.96 is: 19,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.80 : 25,112.40 = 14,232.96 : x
  2. Step 2: Convert to fraction form
    18,218.80/25,112.40 = 14,232.96/x
  3. Step 3: Cross multiply
    18,218.80x = 25,112.40 × 14,232.96
  4. Step 4: Simplify right side
    18,218.80x = 357,423,784.70
  5. Step 5: Solve for x
    x = 357,423,784.70/18,218.80
  6. Step 6: Final answer
    x = 19,618.40

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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.