Home / 27,694.31-38,216.81-15,756.53

Finding the Fourth Proportional to 27,694.31, 38,216.81 and 15,756.53

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Solution

The fourth proportional to 27,694.31, 38,216.81 and 15,756.53 is: 21,743.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,694.31 : 38,216.81 = 15,756.53 : x
  2. Step 2: Convert to fraction form
    27,694.31/38,216.81 = 15,756.53/x
  3. Step 3: Cross multiply
    27,694.31x = 38,216.81 × 15,756.53
  4. Step 4: Simplify right side
    27,694.31x = 602,164,161.58
  5. Step 5: Solve for x
    x = 602,164,161.58/27,694.31
  6. Step 6: Final answer
    x = 21,743.25

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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.