Home / 20,070.28-30,064.38-9,381.34

Finding the Fourth Proportional to 20,070.28, 30,064.38 and 9,381.34

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Solution

The fourth proportional to 20,070.28, 30,064.38 and 9,381.34 is: 14,052.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.28 : 30,064.38 = 9,381.34 : x
  2. Step 2: Convert to fraction form
    20,070.28/30,064.38 = 9,381.34/x
  3. Step 3: Cross multiply
    20,070.28x = 30,064.38 × 9,381.34
  4. Step 4: Simplify right side
    20,070.28x = 282,044,170.67
  5. Step 5: Solve for x
    x = 282,044,170.67/20,070.28
  6. Step 6: Final answer
    x = 14,052.83

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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.