Home / 31,159.20-42,999.84-17,012.38

Finding the Fourth Proportional to 31,159.20, 42,999.84 and 17,012.38

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Solution

The fourth proportional to 31,159.20, 42,999.84 and 17,012.38 is: 23,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159.20 : 42,999.84 = 17,012.38 : x
  2. Step 2: Convert to fraction form
    31,159.20/42,999.84 = 17,012.38/x
  3. Step 3: Cross multiply
    31,159.20x = 42,999.84 × 17,012.38
  4. Step 4: Simplify right side
    31,159.20x = 731,529,618.02
  5. Step 5: Solve for x
    x = 731,529,618.02/31,159.20
  6. Step 6: Final answer
    x = 23,477.16

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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.