Home / 31,029.11-42,820.35-16,881.92

Finding the Fourth Proportional to 31,029.11, 42,820.35 and 16,881.92

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Solution

The fourth proportional to 31,029.11, 42,820.35 and 16,881.92 is: 23,297.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,029.11 : 42,820.35 = 16,881.92 : x
  2. Step 2: Convert to fraction form
    31,029.11/42,820.35 = 16,881.92/x
  3. Step 3: Cross multiply
    31,029.11x = 42,820.35 × 16,881.92
  4. Step 4: Simplify right side
    31,029.11x = 722,889,723.07
  5. Step 5: Solve for x
    x = 722,889,723.07/31,029.11
  6. Step 6: Final answer
    x = 23,297.15

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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.