Home / 31,113.60-42,936.84-17,684.94

Finding the Fourth Proportional to 31,113.60, 42,936.84 and 17,684.94

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Solution

The fourth proportional to 31,113.60, 42,936.84 and 17,684.94 is: 24,405.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,113.60 : 42,936.84 = 17,684.94 : x
  2. Step 2: Convert to fraction form
    31,113.60/42,936.84 = 17,684.94/x
  3. Step 3: Cross multiply
    31,113.60x = 42,936.84 × 17,684.94
  4. Step 4: Simplify right side
    31,113.60x = 759,335,439.19
  5. Step 5: Solve for x
    x = 759,335,439.19/31,113.60
  6. Step 6: Final answer
    x = 24,405.26

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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.