Home / 31,316.91-43,217.29-17,170.66

Finding the Fourth Proportional to 31,316.91, 43,217.29 and 17,170.66

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Solution

The fourth proportional to 31,316.91, 43,217.29 and 17,170.66 is: 23,695.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,316.91 : 43,217.29 = 17,170.66 : x
  2. Step 2: Convert to fraction form
    31,316.91/43,217.29 = 17,170.66/x
  3. Step 3: Cross multiply
    31,316.91x = 43,217.29 × 17,170.66
  4. Step 4: Simplify right side
    31,316.91x = 742,069,392.71
  5. Step 5: Solve for x
    x = 742,069,392.71/31,316.91
  6. Step 6: Final answer
    x = 23,695.49

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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.