Home / 31,042.22-42,838.26-16,895.17

Finding the Fourth Proportional to 31,042.22, 42,838.26 and 16,895.17

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Solution

The fourth proportional to 31,042.22, 42,838.26 and 16,895.17 is: 23,315.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,042.22 : 42,838.26 = 16,895.17 : x
  2. Step 2: Convert to fraction form
    31,042.22/42,838.26 = 16,895.17/x
  3. Step 3: Cross multiply
    31,042.22x = 42,838.26 × 16,895.17
  4. Step 4: Simplify right side
    31,042.22x = 723,759,578.11
  5. Step 5: Solve for x
    x = 723,759,578.11/31,042.22
  6. Step 6: Final answer
    x = 23,315.33

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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.