Home / 20,385.79-30,595.29-10,527.96

Finding the Fourth Proportional to 20,385.79, 30,595.29 and 10,527.96

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Solution

The fourth proportional to 20,385.79, 30,595.29 and 10,527.96 is: 15,800.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385.79 : 30,595.29 = 10,527.96 : x
  2. Step 2: Convert to fraction form
    20,385.79/30,595.29 = 10,527.96/x
  3. Step 3: Cross multiply
    20,385.79x = 30,595.29 × 10,527.96
  4. Step 4: Simplify right side
    20,385.79x = 322,105,836.33
  5. Step 5: Solve for x
    x = 322,105,836.33/20,385.79
  6. Step 6: Final answer
    x = 15,800.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.