Home / 31,718.16-43,791.23-19,799.01

Finding the Fourth Proportional to 31,718.16, 43,791.23 and 19,799.01

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Solution

The fourth proportional to 31,718.16, 43,791.23 and 19,799.01 is: 27,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,718.16 : 43,791.23 = 19,799.01 : x
  2. Step 2: Convert to fraction form
    31,718.16/43,791.23 = 19,799.01/x
  3. Step 3: Cross multiply
    31,718.16x = 43,791.23 × 19,799.01
  4. Step 4: Simplify right side
    31,718.16x = 867,023,000.68
  5. Step 5: Solve for x
    x = 867,023,000.68/31,718.16
  6. Step 6: Final answer
    x = 27,335.22

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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.