Home / 31,258.11-43,156.31-27,895.15

Finding the Fourth Proportional to 31,258.11, 43,156.31 and 27,895.15

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Solution

The fourth proportional to 31,258.11, 43,156.31 and 27,895.15 is: 38,513.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,258.11 : 43,156.31 = 27,895.15 : x
  2. Step 2: Convert to fraction form
    31,258.11/43,156.31 = 27,895.15/x
  3. Step 3: Cross multiply
    31,258.11x = 43,156.31 × 27,895.15
  4. Step 4: Simplify right side
    31,258.11x = 1,203,851,525.11
  5. Step 5: Solve for x
    x = 1,203,851,525.11/31,258.11
  6. Step 6: Final answer
    x = 38,513.25

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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.