Home / 20,727.04-28,603.28-11,295.60

Finding the Fourth Proportional to 20,727.04, 28,603.28 and 11,295.60

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Solution

The fourth proportional to 20,727.04, 28,603.28 and 11,295.60 is: 15,587.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.04 : 28,603.28 = 11,295.60 : x
  2. Step 2: Convert to fraction form
    20,727.04/28,603.28 = 11,295.60/x
  3. Step 3: Cross multiply
    20,727.04x = 28,603.28 × 11,295.60
  4. Step 4: Simplify right side
    20,727.04x = 323,091,209.57
  5. Step 5: Solve for x
    x = 323,091,209.57/20,727.04
  6. Step 6: Final answer
    x = 15,587.91

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1.5x scale

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.