Home / 25,345.28-38,015.36-8,928

Finding the Fourth Proportional to 25,345.28, 38,015.36 and 8,928

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Solution

The fourth proportional to 25,345.28, 38,015.36 and 8,928 is: 13,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,345.28 : 38,015.36 = 8,928 : x
  2. Step 2: Convert to fraction form
    25,345.28/38,015.36 = 8,928/x
  3. Step 3: Cross multiply
    25,345.28x = 38,015.36 × 8,928
  4. Step 4: Simplify right side
    25,345.28x = 339,401,134.08
  5. Step 5: Solve for x
    x = 339,401,134.08/25,345.28
  6. Step 6: Final answer
    x = 13,391.10

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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.