Home / 31,421.71-43,363.70-17,277.49

Finding the Fourth Proportional to 31,421.71, 43,363.70 and 17,277.49

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Solution

The fourth proportional to 31,421.71, 43,363.70 and 17,277.49 is: 23,843.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.71 : 43,363.70 = 17,277.49 : x
  2. Step 2: Convert to fraction form
    31,421.71/43,363.70 = 17,277.49/x
  3. Step 3: Cross multiply
    31,421.71x = 43,363.70 × 17,277.49
  4. Step 4: Simplify right side
    31,421.71x = 749,215,719.49
  5. Step 5: Solve for x
    x = 749,215,719.49/31,421.71
  6. Step 6: Final answer
    x = 23,843.89

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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.