Home / 20,191.36-30,290.16-6,337.12

Finding the Fourth Proportional to 20,191.36, 30,290.16 and 6,337.12

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Solution

The fourth proportional to 20,191.36, 30,290.16 and 6,337.12 is: 9,506.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.36 : 30,290.16 = 6,337.12 : x
  2. Step 2: Convert to fraction form
    20,191.36/30,290.16 = 6,337.12/x
  3. Step 3: Cross multiply
    20,191.36x = 30,290.16 × 6,337.12
  4. Step 4: Simplify right side
    20,191.36x = 191,952,378.74
  5. Step 5: Solve for x
    x = 191,952,378.74/20,191.36
  6. Step 6: Final answer
    x = 9,506.66

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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.