Home / 31,318.14-43,212.93-18,568.95

Finding the Fourth Proportional to 31,318.14, 43,212.93 and 18,568.95

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Solution

The fourth proportional to 31,318.14, 43,212.93 and 18,568.95 is: 25,621.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,318.14 : 43,212.93 = 18,568.95 : x
  2. Step 2: Convert to fraction form
    31,318.14/43,212.93 = 18,568.95/x
  3. Step 3: Cross multiply
    31,318.14x = 43,212.93 × 18,568.95
  4. Step 4: Simplify right side
    31,318.14x = 802,418,504.84
  5. Step 5: Solve for x
    x = 802,418,504.84/31,318.14
  6. Step 6: Final answer
    x = 25,621.52

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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.