Home / 31,869.15-43,977.60-17,721.69

Finding the Fourth Proportional to 31,869.15, 43,977.60 and 17,721.69

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Solution

The fourth proportional to 31,869.15, 43,977.60 and 17,721.69 is: 24,454.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,869.15 : 43,977.60 = 17,721.69 : x
  2. Step 2: Convert to fraction form
    31,869.15/43,977.60 = 17,721.69/x
  3. Step 3: Cross multiply
    31,869.15x = 43,977.60 × 17,721.69
  4. Step 4: Simplify right side
    31,869.15x = 779,357,394.14
  5. Step 5: Solve for x
    x = 779,357,394.14/31,869.15
  6. Step 6: Final answer
    x = 24,454.92

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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.