Home / 20,668.02-30,974.28-11,294.01

Finding the Fourth Proportional to 20,668.02, 30,974.28 and 11,294.01

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Solution

The fourth proportional to 20,668.02, 30,974.28 and 11,294.01 is: 16,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.02 : 30,974.28 = 11,294.01 : x
  2. Step 2: Convert to fraction form
    20,668.02/30,974.28 = 11,294.01/x
  3. Step 3: Cross multiply
    20,668.02x = 30,974.28 × 11,294.01
  4. Step 4: Simplify right side
    20,668.02x = 349,823,828.06
  5. Step 5: Solve for x
    x = 349,823,828.06/20,668.02
  6. Step 6: Final answer
    x = 16,925.85

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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.