Home / 31,425.32-43,365.85-17,278.07

Finding the Fourth Proportional to 31,425.32, 43,365.85 and 17,278.07

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Solution

The fourth proportional to 31,425.32, 43,365.85 and 17,278.07 is: 23,843.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,425.32 : 43,365.85 = 17,278.07 : x
  2. Step 2: Convert to fraction form
    31,425.32/43,365.85 = 17,278.07/x
  3. Step 3: Cross multiply
    31,425.32x = 43,365.85 × 17,278.07
  4. Step 4: Simplify right side
    31,425.32x = 749,277,931.89
  5. Step 5: Solve for x
    x = 749,277,931.89/31,425.32
  6. Step 6: Final answer
    x = 23,843.13

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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.