Home / 31,846.56-43,936.02-20,515.18

Finding the Fourth Proportional to 31,846.56, 43,936.02 and 20,515.18

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Solution

The fourth proportional to 31,846.56, 43,936.02 and 20,515.18 is: 28,303.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,846.56 : 43,936.02 = 20,515.18 : x
  2. Step 2: Convert to fraction form
    31,846.56/43,936.02 = 20,515.18/x
  3. Step 3: Cross multiply
    31,846.56x = 43,936.02 × 20,515.18
  4. Step 4: Simplify right side
    31,846.56x = 901,355,358.78
  5. Step 5: Solve for x
    x = 901,355,358.78/31,846.56
  6. Step 6: Final answer
    x = 28,303.07

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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.