Home / 31,029.83-42,821.35-16,882.77

Finding the Fourth Proportional to 31,029.83, 42,821.35 and 16,882.77

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Solution

The fourth proportional to 31,029.83, 42,821.35 and 16,882.77 is: 23,298.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,029.83 : 42,821.35 = 16,882.77 : x
  2. Step 2: Convert to fraction form
    31,029.83/42,821.35 = 16,882.77/x
  3. Step 3: Cross multiply
    31,029.83x = 42,821.35 × 16,882.77
  4. Step 4: Simplify right side
    31,029.83x = 722,943,121.51
  5. Step 5: Solve for x
    x = 722,943,121.51/31,029.83
  6. Step 6: Final answer
    x = 23,298.33

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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.