Home / 31,740.59-43,766.06-20,240.15

Finding the Fourth Proportional to 31,740.59, 43,766.06 and 20,240.15

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Solution

The fourth proportional to 31,740.59, 43,766.06 and 20,240.15 is: 27,908.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,740.59 : 43,766.06 = 20,240.15 : x
  2. Step 2: Convert to fraction form
    31,740.59/43,766.06 = 20,240.15/x
  3. Step 3: Cross multiply
    31,740.59x = 43,766.06 × 20,240.15
  4. Step 4: Simplify right side
    31,740.59x = 885,831,299.28
  5. Step 5: Solve for x
    x = 885,831,299.28/31,740.59
  6. Step 6: Final answer
    x = 27,908.47

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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.