Home / 31,154.59-43,013.96-19,235.44

Finding the Fourth Proportional to 31,154.59, 43,013.96 and 19,235.44

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Solution

The fourth proportional to 31,154.59, 43,013.96 and 19,235.44 is: 26,557.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,154.59 : 43,013.96 = 19,235.44 : x
  2. Step 2: Convert to fraction form
    31,154.59/43,013.96 = 19,235.44/x
  3. Step 3: Cross multiply
    31,154.59x = 43,013.96 × 19,235.44
  4. Step 4: Simplify right side
    31,154.59x = 827,392,446.74
  5. Step 5: Solve for x
    x = 827,392,446.74/31,154.59
  6. Step 6: Final answer
    x = 26,557.64

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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.