Home / 20,381.34-30,572.03-5,590.37

Finding the Fourth Proportional to 20,381.34, 30,572.03 and 5,590.37

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Solution

The fourth proportional to 20,381.34, 30,572.03 and 5,590.37 is: 8,385.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381.34 : 30,572.03 = 5,590.37 : x
  2. Step 2: Convert to fraction form
    20,381.34/30,572.03 = 5,590.37/x
  3. Step 3: Cross multiply
    20,381.34x = 30,572.03 × 5,590.37
  4. Step 4: Simplify right side
    20,381.34x = 170,908,959.35
  5. Step 5: Solve for x
    x = 170,908,959.35/20,381.34
  6. Step 6: Final answer
    x = 8,385.56

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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.