Home / 31,736.14-43,792.79-18,986.74

Finding the Fourth Proportional to 31,736.14, 43,792.79 and 18,986.74

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Solution

The fourth proportional to 31,736.14, 43,792.79 and 18,986.74 is: 26,199.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,736.14 : 43,792.79 = 18,986.74 : x
  2. Step 2: Convert to fraction form
    31,736.14/43,792.79 = 18,986.74/x
  3. Step 3: Cross multiply
    31,736.14x = 43,792.79 × 18,986.74
  4. Step 4: Simplify right side
    31,736.14x = 831,482,113.19
  5. Step 5: Solve for x
    x = 831,482,113.19/31,736.14
  6. Step 6: Final answer
    x = 26,199.85

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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.