Home / 31,356.12-43,263.72-18,608.70

Finding the Fourth Proportional to 31,356.12, 43,263.72 and 18,608.70

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Solution

The fourth proportional to 31,356.12, 43,263.72 and 18,608.70 is: 25,675.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,356.12 : 43,263.72 = 18,608.70 : x
  2. Step 2: Convert to fraction form
    31,356.12/43,263.72 = 18,608.70/x
  3. Step 3: Cross multiply
    31,356.12x = 43,263.72 × 18,608.70
  4. Step 4: Simplify right side
    31,356.12x = 805,081,586.36
  5. Step 5: Solve for x
    x = 805,081,586.36/31,356.12
  6. Step 6: Final answer
    x = 25,675.42

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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.