Home / 32,859.36-45,351.12-20,928

Finding the Fourth Proportional to 32,859.36, 45,351.12 and 20,928

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Solution

The fourth proportional to 32,859.36, 45,351.12 and 20,928 is: 28,883.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,859.36 : 45,351.12 = 20,928 : x
  2. Step 2: Convert to fraction form
    32,859.36/45,351.12 = 20,928/x
  3. Step 3: Cross multiply
    32,859.36x = 45,351.12 × 20,928
  4. Step 4: Simplify right side
    32,859.36x = 949,108,239.36
  5. Step 5: Solve for x
    x = 949,108,239.36/32,859.36
  6. Step 6: Final answer
    x = 28,883.95

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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.