Home / 27,621.69-38,116.62-15,683.46

Finding the Fourth Proportional to 27,621.69, 38,116.62 and 15,683.46

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Solution

The fourth proportional to 27,621.69, 38,116.62 and 15,683.46 is: 21,642.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.69 : 38,116.62 = 15,683.46 : x
  2. Step 2: Convert to fraction form
    27,621.69/38,116.62 = 15,683.46/x
  3. Step 3: Cross multiply
    27,621.69x = 38,116.62 × 15,683.46
  4. Step 4: Simplify right side
    27,621.69x = 597,800,485.11
  5. Step 5: Solve for x
    x = 597,800,485.11/27,621.69
  6. Step 6: Final answer
    x = 21,642.43

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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.