Home / 21,576.68-32,348.46-19,378.70

Finding the Fourth Proportional to 21,576.68, 32,348.46 and 19,378.70

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Solution

The fourth proportional to 21,576.68, 32,348.46 and 19,378.70 is: 29,053.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,576.68 : 32,348.46 = 19,378.70 : x
  2. Step 2: Convert to fraction form
    21,576.68/32,348.46 = 19,378.70/x
  3. Step 3: Cross multiply
    21,576.68x = 32,348.46 × 19,378.70
  4. Step 4: Simplify right side
    21,576.68x = 626,871,101.80
  5. Step 5: Solve for x
    x = 626,871,101.80/21,576.68
  6. Step 6: Final answer
    x = 29,053.18

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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.