Home / 31,810.69-43,895.49-18,386.26

Finding the Fourth Proportional to 31,810.69, 43,895.49 and 18,386.26

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Solution

The fourth proportional to 31,810.69, 43,895.49 and 18,386.26 is: 25,371.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,810.69 : 43,895.49 = 18,386.26 : x
  2. Step 2: Convert to fraction form
    31,810.69/43,895.49 = 18,386.26/x
  3. Step 3: Cross multiply
    31,810.69x = 43,895.49 × 18,386.26
  4. Step 4: Simplify right side
    31,810.69x = 807,073,891.97
  5. Step 5: Solve for x
    x = 807,073,891.97/31,810.69
  6. Step 6: Final answer
    x = 25,371.15

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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.