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Finding the Fourth Proportional to 31,191, 43,044.30 and 19,262.52

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Solution

The fourth proportional to 31,191, 43,044.30 and 19,262.52 is: 26,582.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,191 : 43,044.30 = 19,262.52 : x
  2. Step 2: Convert to fraction form
    31,191/43,044.30 = 19,262.52/x
  3. Step 3: Cross multiply
    31,191x = 43,044.30 × 19,262.52
  4. Step 4: Simplify right side
    31,191x = 829,141,689.64
  5. Step 5: Solve for x
    x = 829,141,689.64/31,191
  6. Step 6: Final answer
    x = 26,582.72

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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.