Home / 31,207.07-43,065.68-17,778.35

Finding the Fourth Proportional to 31,207.07, 43,065.68 and 17,778.35

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Solution

The fourth proportional to 31,207.07, 43,065.68 and 17,778.35 is: 24,534.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,207.07 : 43,065.68 = 17,778.35 : x
  2. Step 2: Convert to fraction form
    31,207.07/43,065.68 = 17,778.35/x
  3. Step 3: Cross multiply
    31,207.07x = 43,065.68 × 17,778.35
  4. Step 4: Simplify right side
    31,207.07x = 765,636,750.80
  5. Step 5: Solve for x
    x = 765,636,750.80/31,207.07
  6. Step 6: Final answer
    x = 24,534.08

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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.