Home / 28,253.46-38,990.27-15,507.83

Finding the Fourth Proportional to 28,253.46, 38,990.27 and 15,507.83

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Solution

The fourth proportional to 28,253.46, 38,990.27 and 15,507.83 is: 21,401.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,253.46 : 38,990.27 = 15,507.83 : x
  2. Step 2: Convert to fraction form
    28,253.46/38,990.27 = 15,507.83/x
  3. Step 3: Cross multiply
    28,253.46x = 38,990.27 × 15,507.83
  4. Step 4: Simplify right side
    28,253.46x = 604,654,518.14
  5. Step 5: Solve for x
    x = 604,654,518.14/28,253.46
  6. Step 6: Final answer
    x = 21,401.08

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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.