Home / 31,426.13-43,368.26-17,279.48

Finding the Fourth Proportional to 31,426.13, 43,368.26 and 17,279.48

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Solution

The fourth proportional to 31,426.13, 43,368.26 and 17,279.48 is: 23,845.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.13 : 43,368.26 = 17,279.48 : x
  2. Step 2: Convert to fraction form
    31,426.13/43,368.26 = 17,279.48/x
  3. Step 3: Cross multiply
    31,426.13x = 43,368.26 × 17,279.48
  4. Step 4: Simplify right side
    31,426.13x = 749,380,678.07
  5. Step 5: Solve for x
    x = 749,380,678.07/31,426.13
  6. Step 6: Final answer
    x = 23,845.79

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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.