Home / 31,026.62-42,815.48-16,879.16

Finding the Fourth Proportional to 31,026.62, 42,815.48 and 16,879.16

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Solution

The fourth proportional to 31,026.62, 42,815.48 and 16,879.16 is: 23,292.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,026.62 : 42,815.48 = 16,879.16 : x
  2. Step 2: Convert to fraction form
    31,026.62/42,815.48 = 16,879.16/x
  3. Step 3: Cross multiply
    31,026.62x = 42,815.48 × 16,879.16
  4. Step 4: Simplify right side
    31,026.62x = 722,689,038.92
  5. Step 5: Solve for x
    x = 722,689,038.92/31,026.62
  6. Step 6: Final answer
    x = 23,292.55

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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.