Home / 21,475.80-32,216.76-6,686.21

Finding the Fourth Proportional to 21,475.80, 32,216.76 and 6,686.21

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Solution

The fourth proportional to 21,475.80, 32,216.76 and 6,686.21 is: 10,030.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,475.80 : 32,216.76 = 6,686.21 : x
  2. Step 2: Convert to fraction form
    21,475.80/32,216.76 = 6,686.21/x
  3. Step 3: Cross multiply
    21,475.80x = 32,216.76 × 6,686.21
  4. Step 4: Simplify right side
    21,475.80x = 215,407,861.80
  5. Step 5: Solve for x
    x = 215,407,861.80/21,475.80
  6. Step 6: Final answer
    x = 10,030.26

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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.