Home / 21,443.20-32,164.80-5,862.40

Finding the Fourth Proportional to 21,443.20, 32,164.80 and 5,862.40

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Solution

The fourth proportional to 21,443.20, 32,164.80 and 5,862.40 is: 8,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,443.20 : 32,164.80 = 5,862.40 : x
  2. Step 2: Convert to fraction form
    21,443.20/32,164.80 = 5,862.40/x
  3. Step 3: Cross multiply
    21,443.20x = 32,164.80 × 5,862.40
  4. Step 4: Simplify right side
    21,443.20x = 188,562,923.52
  5. Step 5: Solve for x
    x = 188,562,923.52/21,443.20
  6. Step 6: Final answer
    x = 8,793.60

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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.