Home / 39,983.64-60,012.04-20,275.80

Finding the Fourth Proportional to 39,983.64, 60,012.04 and 20,275.80

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Solution

The fourth proportional to 39,983.64, 60,012.04 and 20,275.80 is: 30,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,983.64 : 60,012.04 = 20,275.80 : x
  2. Step 2: Convert to fraction form
    39,983.64/60,012.04 = 20,275.80/x
  3. Step 3: Cross multiply
    39,983.64x = 60,012.04 × 20,275.80
  4. Step 4: Simplify right side
    39,983.64x = 1,216,792,120.63
  5. Step 5: Solve for x
    x = 1,216,792,120.63/39,983.64
  6. Step 6: Final answer
    x = 30,432.25

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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.