Home / 21,403.40-32,108.18-6,613.62

Finding the Fourth Proportional to 21,403.40, 32,108.18 and 6,613.62

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Solution

The fourth proportional to 21,403.40, 32,108.18 and 6,613.62 is: 9,921.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.40 : 32,108.18 = 6,613.62 : x
  2. Step 2: Convert to fraction form
    21,403.40/32,108.18 = 6,613.62/x
  3. Step 3: Cross multiply
    21,403.40x = 32,108.18 × 6,613.62
  4. Step 4: Simplify right side
    21,403.40x = 212,351,301.41
  5. Step 5: Solve for x
    x = 212,351,301.41/21,403.40
  6. Step 6: Final answer
    x = 9,921.38

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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.