Home / 20,209.32-30,207.24-17,555.76

Finding the Fourth Proportional to 20,209.32, 30,207.24 and 17,555.76

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Solution

The fourth proportional to 20,209.32, 30,207.24 and 17,555.76 is: 26,240.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209.32 : 30,207.24 = 17,555.76 : x
  2. Step 2: Convert to fraction form
    20,209.32/30,207.24 = 17,555.76/x
  3. Step 3: Cross multiply
    20,209.32x = 30,207.24 × 17,555.76
  4. Step 4: Simplify right side
    20,209.32x = 530,311,055.70
  5. Step 5: Solve for x
    x = 530,311,055.70/20,209.32
  6. Step 6: Final answer
    x = 26,240.92

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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.