Home / 31,272.78-43,155.99-17,125.63

Finding the Fourth Proportional to 31,272.78, 43,155.99 and 17,125.63

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Solution

The fourth proportional to 31,272.78, 43,155.99 and 17,125.63 is: 23,633.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,272.78 : 43,155.99 = 17,125.63 : x
  2. Step 2: Convert to fraction form
    31,272.78/43,155.99 = 17,125.63/x
  3. Step 3: Cross multiply
    31,272.78x = 43,155.99 × 17,125.63
  4. Step 4: Simplify right side
    31,272.78x = 739,073,409.13
  5. Step 5: Solve for x
    x = 739,073,409.13/31,272.78
  6. Step 6: Final answer
    x = 23,633.12

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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.