Home / 31,790.49-43,872.93-18,362.31

Finding the Fourth Proportional to 31,790.49, 43,872.93 and 18,362.31

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Solution

The fourth proportional to 31,790.49, 43,872.93 and 18,362.31 is: 25,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,790.49 : 43,872.93 = 18,362.31 : x
  2. Step 2: Convert to fraction form
    31,790.49/43,872.93 = 18,362.31/x
  3. Step 3: Cross multiply
    31,790.49x = 43,872.93 × 18,362.31
  4. Step 4: Simplify right side
    31,790.49x = 805,608,341.27
  5. Step 5: Solve for x
    x = 805,608,341.27/31,790.49
  6. Step 6: Final answer
    x = 25,341.17

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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.