Home / 55,323.20-82,999.32-21,589.76

Finding the Fourth Proportional to 55,323.20, 82,999.32 and 21,589.76

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Solution

The fourth proportional to 55,323.20, 82,999.32 and 21,589.76 is: 32,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,323.20 : 82,999.32 = 21,589.76 : x
  2. Step 2: Convert to fraction form
    55,323.20/82,999.32 = 21,589.76/x
  3. Step 3: Cross multiply
    55,323.20x = 82,999.32 × 21,589.76
  4. Step 4: Simplify right side
    55,323.20x = 1,791,935,398.96
  5. Step 5: Solve for x
    x = 1,791,935,398.96/55,323.20
  6. Step 6: Final answer
    x = 32,390.31

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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.