Home / 31,026.04-42,815.70-16,878.87

Finding the Fourth Proportional to 31,026.04, 42,815.70 and 16,878.87

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Solution

The fourth proportional to 31,026.04, 42,815.70 and 16,878.87 is: 23,292.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,026.04 : 42,815.70 = 16,878.87 : x
  2. Step 2: Convert to fraction form
    31,026.04/42,815.70 = 16,878.87/x
  3. Step 3: Cross multiply
    31,026.04x = 42,815.70 × 16,878.87
  4. Step 4: Simplify right side
    31,026.04x = 722,680,634.26
  5. Step 5: Solve for x
    x = 722,680,634.26/31,026.04
  6. Step 6: Final answer
    x = 23,292.71

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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.