Home / 20,498.11-30,748.26-6,459.22

Finding the Fourth Proportional to 20,498.11, 30,748.26 and 6,459.22

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Solution

The fourth proportional to 20,498.11, 30,748.26 and 6,459.22 is: 9,689.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498.11 : 30,748.26 = 6,459.22 : x
  2. Step 2: Convert to fraction form
    20,498.11/30,748.26 = 6,459.22/x
  3. Step 3: Cross multiply
    20,498.11x = 30,748.26 × 6,459.22
  4. Step 4: Simplify right side
    20,498.11x = 198,609,838.61
  5. Step 5: Solve for x
    x = 198,609,838.61/20,498.11
  6. Step 6: Final answer
    x = 9,689.18

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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.