Home / 18,108.55-25,001.49-14,759.40

Finding the Fourth Proportional to 18,108.55, 25,001.49 and 14,759.40

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Solution

The fourth proportional to 18,108.55, 25,001.49 and 14,759.40 is: 20,377.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.55 : 25,001.49 = 14,759.40 : x
  2. Step 2: Convert to fraction form
    18,108.55/25,001.49 = 14,759.40/x
  3. Step 3: Cross multiply
    18,108.55x = 25,001.49 × 14,759.40
  4. Step 4: Simplify right side
    18,108.55x = 369,006,991.51
  5. Step 5: Solve for x
    x = 369,006,991.51/18,108.55
  6. Step 6: Final answer
    x = 20,377.50

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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.