Home / 18,621.18-27,931.07-4,581.26

Finding the Fourth Proportional to 18,621.18, 27,931.07 and 4,581.26

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Solution

The fourth proportional to 18,621.18, 27,931.07 and 4,581.26 is: 6,871.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.18 : 27,931.07 = 4,581.26 : x
  2. Step 2: Convert to fraction form
    18,621.18/27,931.07 = 4,581.26/x
  3. Step 3: Cross multiply
    18,621.18x = 27,931.07 × 4,581.26
  4. Step 4: Simplify right side
    18,621.18x = 127,959,331.19
  5. Step 5: Solve for x
    x = 127,959,331.19/18,621.18
  6. Step 6: Final answer
    x = 6,871.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.