Home / 21,433.20-32,171.40-10,348.80

Finding the Fourth Proportional to 21,433.20, 32,171.40 and 10,348.80

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Solution

The fourth proportional to 21,433.20, 32,171.40 and 10,348.80 is: 15,533.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.20 : 32,171.40 = 10,348.80 : x
  2. Step 2: Convert to fraction form
    21,433.20/32,171.40 = 10,348.80/x
  3. Step 3: Cross multiply
    21,433.20x = 32,171.40 × 10,348.80
  4. Step 4: Simplify right side
    21,433.20x = 332,935,384.32
  5. Step 5: Solve for x
    x = 332,935,384.32/21,433.20
  6. Step 6: Final answer
    x = 15,533.63

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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.