Home / 28,098.80-38,769.36-15,996.72

Finding the Fourth Proportional to 28,098.80, 38,769.36 and 15,996.72

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Solution

The fourth proportional to 28,098.80, 38,769.36 and 15,996.72 is: 22,071.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098.80 : 38,769.36 = 15,996.72 : x
  2. Step 2: Convert to fraction form
    28,098.80/38,769.36 = 15,996.72/x
  3. Step 3: Cross multiply
    28,098.80x = 38,769.36 × 15,996.72
  4. Step 4: Simplify right side
    28,098.80x = 620,182,596.50
  5. Step 5: Solve for x
    x = 620,182,596.50/28,098.80
  6. Step 6: Final answer
    x = 22,071.50

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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.