Home / 31,433.16-43,370.15-19,943.88

Finding the Fourth Proportional to 31,433.16, 43,370.15 and 19,943.88

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Solution

The fourth proportional to 31,433.16, 43,370.15 and 19,943.88 is: 27,517.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,433.16 : 43,370.15 = 19,943.88 : x
  2. Step 2: Convert to fraction form
    31,433.16/43,370.15 = 19,943.88/x
  3. Step 3: Cross multiply
    31,433.16x = 43,370.15 × 19,943.88
  4. Step 4: Simplify right side
    31,433.16x = 864,969,038.99
  5. Step 5: Solve for x
    x = 864,969,038.99/31,433.16
  6. Step 6: Final answer
    x = 27,517.72

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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.