Home / 31,859.34-43,966.12-19,929.46

Finding the Fourth Proportional to 31,859.34, 43,966.12 and 19,929.46

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Solution

The fourth proportional to 31,859.34, 43,966.12 and 19,929.46 is: 27,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,859.34 : 43,966.12 = 19,929.46 : x
  2. Step 2: Convert to fraction form
    31,859.34/43,966.12 = 19,929.46/x
  3. Step 3: Cross multiply
    31,859.34x = 43,966.12 × 19,929.46
  4. Step 4: Simplify right side
    31,859.34x = 876,221,029.90
  5. Step 5: Solve for x
    x = 876,221,029.90/31,859.34
  6. Step 6: Final answer
    x = 27,502.80

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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.