Home / 21,353.85-32,020.03-7,117.29

Finding the Fourth Proportional to 21,353.85, 32,020.03 and 7,117.29

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Solution

The fourth proportional to 21,353.85, 32,020.03 and 7,117.29 is: 10,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,353.85 : 32,020.03 = 7,117.29 : x
  2. Step 2: Convert to fraction form
    21,353.85/32,020.03 = 7,117.29/x
  3. Step 3: Cross multiply
    21,353.85x = 32,020.03 × 7,117.29
  4. Step 4: Simplify right side
    21,353.85x = 227,895,753.15
  5. Step 5: Solve for x
    x = 227,895,753.15/21,353.85
  6. Step 6: Final answer
    x = 10,672.35

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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.