Home / 21,446.78-32,158.47-6,451.70

Finding the Fourth Proportional to 21,446.78, 32,158.47 and 6,451.70

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Solution

The fourth proportional to 21,446.78, 32,158.47 and 6,451.70 is: 9,674.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,446.78 : 32,158.47 = 6,451.70 : x
  2. Step 2: Convert to fraction form
    21,446.78/32,158.47 = 6,451.70/x
  3. Step 3: Cross multiply
    21,446.78x = 32,158.47 × 6,451.70
  4. Step 4: Simplify right side
    21,446.78x = 207,476,808.90
  5. Step 5: Solve for x
    x = 207,476,808.90/21,446.78
  6. Step 6: Final answer
    x = 9,674.03

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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.