Home / 55,004.40-82,528.20-21,718.80

Finding the Fourth Proportional to 55,004.40, 82,528.20 and 21,718.80

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Solution

The fourth proportional to 55,004.40, 82,528.20 and 21,718.80 is: 32,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,004.40 : 82,528.20 = 21,718.80 : x
  2. Step 2: Convert to fraction form
    55,004.40/82,528.20 = 21,718.80/x
  3. Step 3: Cross multiply
    55,004.40x = 82,528.20 × 21,718.80
  4. Step 4: Simplify right side
    55,004.40x = 1,792,413,470.16
  5. Step 5: Solve for x
    x = 1,792,413,470.16/55,004.40
  6. Step 6: Final answer
    x = 32,586.73

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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.