Home / 31,274.17-43,157.01-19,338.82

Finding the Fourth Proportional to 31,274.17, 43,157.01 and 19,338.82

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Solution

The fourth proportional to 31,274.17, 43,157.01 and 19,338.82 is: 26,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,274.17 : 43,157.01 = 19,338.82 : x
  2. Step 2: Convert to fraction form
    31,274.17/43,157.01 = 19,338.82/x
  3. Step 3: Cross multiply
    31,274.17x = 43,157.01 × 19,338.82
  4. Step 4: Simplify right side
    31,274.17x = 834,605,648.13
  5. Step 5: Solve for x
    x = 834,605,648.13/31,274.17
  6. Step 6: Final answer
    x = 26,686.74

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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.