Home / 28,648.72-39,534.62-15,901.16

Finding the Fourth Proportional to 28,648.72, 39,534.62 and 15,901.16

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Solution

The fourth proportional to 28,648.72, 39,534.62 and 15,901.16 is: 21,943.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.72 : 39,534.62 = 15,901.16 : x
  2. Step 2: Convert to fraction form
    28,648.72/39,534.62 = 15,901.16/x
  3. Step 3: Cross multiply
    28,648.72x = 39,534.62 × 15,901.16
  4. Step 4: Simplify right side
    28,648.72x = 628,646,040.98
  5. Step 5: Solve for x
    x = 628,646,040.98/28,648.72
  6. Step 6: Final answer
    x = 21,943.25

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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.