Home / 29,315.72-40,441.28-17,981.60

Finding the Fourth Proportional to 29,315.72, 40,441.28 and 17,981.60

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Solution

The fourth proportional to 29,315.72, 40,441.28 and 17,981.60 is: 24,805.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,315.72 : 40,441.28 = 17,981.60 : x
  2. Step 2: Convert to fraction form
    29,315.72/40,441.28 = 17,981.60/x
  3. Step 3: Cross multiply
    29,315.72x = 40,441.28 × 17,981.60
  4. Step 4: Simplify right side
    29,315.72x = 727,198,628.33
  5. Step 5: Solve for x
    x = 727,198,628.33/29,315.72
  6. Step 6: Final answer
    x = 24,805.75

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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.