Home / 20,928.04-31,394.97-11,068.02

Finding the Fourth Proportional to 20,928.04, 31,394.97 and 11,068.02

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Solution

The fourth proportional to 20,928.04, 31,394.97 and 11,068.02 is: 16,603.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,928.04 : 31,394.97 = 11,068.02 : x
  2. Step 2: Convert to fraction form
    20,928.04/31,394.97 = 11,068.02/x
  3. Step 3: Cross multiply
    20,928.04x = 31,394.97 × 11,068.02
  4. Step 4: Simplify right side
    20,928.04x = 347,480,155.86
  5. Step 5: Solve for x
    x = 347,480,155.86/20,928.04
  6. Step 6: Final answer
    x = 16,603.57

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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.