Home / 18,156.66-25,059.69-15,167.22

Finding the Fourth Proportional to 18,156.66, 25,059.69 and 15,167.22

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Solution

The fourth proportional to 18,156.66, 25,059.69 and 15,167.22 is: 20,933.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156.66 : 25,059.69 = 15,167.22 : x
  2. Step 2: Convert to fraction form
    18,156.66/25,059.69 = 15,167.22/x
  3. Step 3: Cross multiply
    18,156.66x = 25,059.69 × 15,167.22
  4. Step 4: Simplify right side
    18,156.66x = 380,085,831.36
  5. Step 5: Solve for x
    x = 380,085,831.36/18,156.66
  6. Step 6: Final answer
    x = 20,933.69

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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.