Home / 31,308.94-43,204.98-18,740.62

Finding the Fourth Proportional to 31,308.94, 43,204.98 and 18,740.62

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Solution

The fourth proportional to 31,308.94, 43,204.98 and 18,740.62 is: 25,861.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,308.94 : 43,204.98 = 18,740.62 : x
  2. Step 2: Convert to fraction form
    31,308.94/43,204.98 = 18,740.62/x
  3. Step 3: Cross multiply
    31,308.94x = 43,204.98 × 18,740.62
  4. Step 4: Simplify right side
    31,308.94x = 809,688,112.29
  5. Step 5: Solve for x
    x = 809,688,112.29/31,308.94
  6. Step 6: Final answer
    x = 25,861.24

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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.