Home / 20,381.95-30,573.13-5,590.88

Finding the Fourth Proportional to 20,381.95, 30,573.13 and 5,590.88

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Solution

The fourth proportional to 20,381.95, 30,573.13 and 5,590.88 is: 8,386.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381.95 : 30,573.13 = 5,590.88 : x
  2. Step 2: Convert to fraction form
    20,381.95/30,573.13 = 5,590.88/x
  3. Step 3: Cross multiply
    20,381.95x = 30,573.13 × 5,590.88
  4. Step 4: Simplify right side
    20,381.95x = 170,930,701.05
  5. Step 5: Solve for x
    x = 170,930,701.05/20,381.95
  6. Step 6: Final answer
    x = 8,386.38

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1.5x scale

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.