Home / 31,083.36-42,895.02-16,936.20

Finding the Fourth Proportional to 31,083.36, 42,895.02 and 16,936.20

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Solution

The fourth proportional to 31,083.36, 42,895.02 and 16,936.20 is: 23,371.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,083.36 : 42,895.02 = 16,936.20 : x
  2. Step 2: Convert to fraction form
    31,083.36/42,895.02 = 16,936.20/x
  3. Step 3: Cross multiply
    31,083.36x = 42,895.02 × 16,936.20
  4. Step 4: Simplify right side
    31,083.36x = 726,478,637.72
  5. Step 5: Solve for x
    x = 726,478,637.72/31,083.36
  6. Step 6: Final answer
    x = 23,371.95

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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.