Home / 18,631.31-25,721.84-12,352.19

Finding the Fourth Proportional to 18,631.31, 25,721.84 and 12,352.19

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Solution

The fourth proportional to 18,631.31, 25,721.84 and 12,352.19 is: 17,053.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.31 : 25,721.84 = 12,352.19 : x
  2. Step 2: Convert to fraction form
    18,631.31/25,721.84 = 12,352.19/x
  3. Step 3: Cross multiply
    18,631.31x = 25,721.84 × 12,352.19
  4. Step 4: Simplify right side
    18,631.31x = 317,720,993.07
  5. Step 5: Solve for x
    x = 317,720,993.07/18,631.31
  6. Step 6: Final answer
    x = 17,053.07

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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.