Home / 31,303.72-43,195.62-19,374.76

Finding the Fourth Proportional to 31,303.72, 43,195.62 and 19,374.76

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Solution

The fourth proportional to 31,303.72, 43,195.62 and 19,374.76 is: 26,734.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,303.72 : 43,195.62 = 19,374.76 : x
  2. Step 2: Convert to fraction form
    31,303.72/43,195.62 = 19,374.76/x
  3. Step 3: Cross multiply
    31,303.72x = 43,195.62 × 19,374.76
  4. Step 4: Simplify right side
    31,303.72x = 836,904,770.55
  5. Step 5: Solve for x
    x = 836,904,770.55/31,303.72
  6. Step 6: Final answer
    x = 26,734.99

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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.