Home / 17,880.29-24,672.20-11,515.52

Finding the Fourth Proportional to 17,880.29, 24,672.20 and 11,515.52

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Solution

The fourth proportional to 17,880.29, 24,672.20 and 11,515.52 is: 15,889.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,880.29 : 24,672.20 = 11,515.52 : x
  2. Step 2: Convert to fraction form
    17,880.29/24,672.20 = 11,515.52/x
  3. Step 3: Cross multiply
    17,880.29x = 24,672.20 × 11,515.52
  4. Step 4: Simplify right side
    17,880.29x = 284,113,077.87
  5. Step 5: Solve for x
    x = 284,113,077.87/17,880.29
  6. Step 6: Final answer
    x = 15,889.73

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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.