Home / 31,670.30-43,698.20-19,094.78

Finding the Fourth Proportional to 31,670.30, 43,698.20 and 19,094.78

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Solution

The fourth proportional to 31,670.30, 43,698.20 and 19,094.78 is: 26,346.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,670.30 : 43,698.20 = 19,094.78 : x
  2. Step 2: Convert to fraction form
    31,670.30/43,698.20 = 19,094.78/x
  3. Step 3: Cross multiply
    31,670.30x = 43,698.20 × 19,094.78
  4. Step 4: Simplify right side
    31,670.30x = 834,407,515.40
  5. Step 5: Solve for x
    x = 834,407,515.40/31,670.30
  6. Step 6: Final answer
    x = 26,346.69

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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.