Home / 31,315.20-43,214.67-17,168.01

Finding the Fourth Proportional to 31,315.20, 43,214.67 and 17,168.01

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Solution

The fourth proportional to 31,315.20, 43,214.67 and 17,168.01 is: 23,691.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,315.20 : 43,214.67 = 17,168.01 : x
  2. Step 2: Convert to fraction form
    31,315.20/43,214.67 = 17,168.01/x
  3. Step 3: Cross multiply
    31,315.20x = 43,214.67 × 17,168.01
  4. Step 4: Simplify right side
    31,315.20x = 741,909,886.71
  5. Step 5: Solve for x
    x = 741,909,886.71/31,315.20
  6. Step 6: Final answer
    x = 23,691.69

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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.