Home / 21,677.20-32,476.92-20,510.80

Finding the Fourth Proportional to 21,677.20, 32,476.92 and 20,510.80

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Solution

The fourth proportional to 21,677.20, 32,476.92 and 20,510.80 is: 30,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,677.20 : 32,476.92 = 20,510.80 : x
  2. Step 2: Convert to fraction form
    21,677.20/32,476.92 = 20,510.80/x
  3. Step 3: Cross multiply
    21,677.20x = 32,476.92 × 20,510.80
  4. Step 4: Simplify right side
    21,677.20x = 666,127,610.74
  5. Step 5: Solve for x
    x = 666,127,610.74/21,677.20
  6. Step 6: Final answer
    x = 30,729.41

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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.