Home / 28,017.14-38,663.80-15,441.88

Finding the Fourth Proportional to 28,017.14, 38,663.80 and 15,441.88

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Solution

The fourth proportional to 28,017.14, 38,663.80 and 15,441.88 is: 21,309.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.14 : 38,663.80 = 15,441.88 : x
  2. Step 2: Convert to fraction form
    28,017.14/38,663.80 = 15,441.88/x
  3. Step 3: Cross multiply
    28,017.14x = 38,663.80 × 15,441.88
  4. Step 4: Simplify right side
    28,017.14x = 597,041,759.94
  5. Step 5: Solve for x
    x = 597,041,759.94/28,017.14
  6. Step 6: Final answer
    x = 21,309.88

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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.