Home / 31,179.60-43,040.16-19,247.76

Finding the Fourth Proportional to 31,179.60, 43,040.16 and 19,247.76

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Solution

The fourth proportional to 31,179.60, 43,040.16 and 19,247.76 is: 26,569.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,179.60 : 43,040.16 = 19,247.76 : x
  2. Step 2: Convert to fraction form
    31,179.60/43,040.16 = 19,247.76/x
  3. Step 3: Cross multiply
    31,179.60x = 43,040.16 × 19,247.76
  4. Step 4: Simplify right side
    31,179.60x = 828,426,670.04
  5. Step 5: Solve for x
    x = 828,426,670.04/31,179.60
  6. Step 6: Final answer
    x = 26,569.51

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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.