Home / 20,381.63-30,572.49-5,590.76

Finding the Fourth Proportional to 20,381.63, 30,572.49 and 5,590.76

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Solution

The fourth proportional to 20,381.63, 30,572.49 and 5,590.76 is: 8,386.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381.63 : 30,572.49 = 5,590.76 : x
  2. Step 2: Convert to fraction form
    20,381.63/30,572.49 = 5,590.76/x
  3. Step 3: Cross multiply
    20,381.63x = 30,572.49 × 5,590.76
  4. Step 4: Simplify right side
    20,381.63x = 170,923,454.19
  5. Step 5: Solve for x
    x = 170,923,454.19/20,381.63
  6. Step 6: Final answer
    x = 8,386.15

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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.