Home / 31,575.54-43,590.03-19,642.74

Finding the Fourth Proportional to 31,575.54, 43,590.03 and 19,642.74

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Solution

The fourth proportional to 31,575.54, 43,590.03 and 19,642.74 is: 27,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,575.54 : 43,590.03 = 19,642.74 : x
  2. Step 2: Convert to fraction form
    31,575.54/43,590.03 = 19,642.74/x
  3. Step 3: Cross multiply
    31,575.54x = 43,590.03 × 19,642.74
  4. Step 4: Simplify right side
    31,575.54x = 856,227,625.88
  5. Step 5: Solve for x
    x = 856,227,625.88/31,575.54
  6. Step 6: Final answer
    x = 27,116.80

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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.