Home / 31,212.56-43,074-17,066.72

Finding the Fourth Proportional to 31,212.56, 43,074 and 17,066.72

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Solution

The fourth proportional to 31,212.56, 43,074 and 17,066.72 is: 23,552.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,212.56 : 43,074 = 17,066.72 : x
  2. Step 2: Convert to fraction form
    31,212.56/43,074 = 17,066.72/x
  3. Step 3: Cross multiply
    31,212.56x = 43,074 × 17,066.72
  4. Step 4: Simplify right side
    31,212.56x = 735,131,897.28
  5. Step 5: Solve for x
    x = 735,131,897.28/31,212.56
  6. Step 6: Final answer
    x = 23,552.44

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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.