Home / 20,350.72-30,378.65-17,595.10

Finding the Fourth Proportional to 20,350.72, 30,378.65 and 17,595.10

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Solution

The fourth proportional to 20,350.72, 30,378.65 and 17,595.10 is: 26,265.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,350.72 : 30,378.65 = 17,595.10 : x
  2. Step 2: Convert to fraction form
    20,350.72/30,378.65 = 17,595.10/x
  3. Step 3: Cross multiply
    20,350.72x = 30,378.65 × 17,595.10
  4. Step 4: Simplify right side
    20,350.72x = 534,515,384.62
  5. Step 5: Solve for x
    x = 534,515,384.62/20,350.72
  6. Step 6: Final answer
    x = 26,265.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.