Home / 38,643.47-57,954.50-13,680.23

Finding the Fourth Proportional to 38,643.47, 57,954.50 and 13,680.23

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Solution

The fourth proportional to 38,643.47, 57,954.50 and 13,680.23 is: 20,516.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,643.47 : 57,954.50 = 13,680.23 : x
  2. Step 2: Convert to fraction form
    38,643.47/57,954.50 = 13,680.23/x
  3. Step 3: Cross multiply
    38,643.47x = 57,954.50 × 13,680.23
  4. Step 4: Simplify right side
    38,643.47x = 792,830,889.54
  5. Step 5: Solve for x
    x = 792,830,889.54/38,643.47
  6. Step 6: Final answer
    x = 20,516.56

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1.5x scale

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.