Home / 22,688.67-31,310.43-12,617.76

Finding the Fourth Proportional to 22,688.67, 31,310.43 and 12,617.76

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Solution

The fourth proportional to 22,688.67, 31,310.43 and 12,617.76 is: 17,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,688.67 : 31,310.43 = 12,617.76 : x
  2. Step 2: Convert to fraction form
    22,688.67/31,310.43 = 12,617.76/x
  3. Step 3: Cross multiply
    22,688.67x = 31,310.43 × 12,617.76
  4. Step 4: Simplify right side
    22,688.67x = 395,067,491.24
  5. Step 5: Solve for x
    x = 395,067,491.24/22,688.67
  6. Step 6: Final answer
    x = 17,412.55

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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.