Home / 31,478.28-43,441.06-17,332.20

Finding the Fourth Proportional to 31,478.28, 43,441.06 and 17,332.20

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Solution

The fourth proportional to 31,478.28, 43,441.06 and 17,332.20 is: 23,919.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,478.28 : 43,441.06 = 17,332.20 : x
  2. Step 2: Convert to fraction form
    31,478.28/43,441.06 = 17,332.20/x
  3. Step 3: Cross multiply
    31,478.28x = 43,441.06 × 17,332.20
  4. Step 4: Simplify right side
    31,478.28x = 752,929,140.13
  5. Step 5: Solve for x
    x = 752,929,140.13/31,478.28
  6. Step 6: Final answer
    x = 23,919.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.