Home / 31,046.11-42,842.48-16,898.65

Finding the Fourth Proportional to 31,046.11, 42,842.48 and 16,898.65

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Solution

The fourth proportional to 31,046.11, 42,842.48 and 16,898.65 is: 23,319.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,046.11 : 42,842.48 = 16,898.65 : x
  2. Step 2: Convert to fraction form
    31,046.11/42,842.48 = 16,898.65/x
  3. Step 3: Cross multiply
    31,046.11x = 42,842.48 × 16,898.65
  4. Step 4: Simplify right side
    31,046.11x = 723,979,883.05
  5. Step 5: Solve for x
    x = 723,979,883.05/31,046.11
  6. Step 6: Final answer
    x = 23,319.51

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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.