Home / 20,548.53-28,357.02-11,117.09

Finding the Fourth Proportional to 20,548.53, 28,357.02 and 11,117.09

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Solution

The fourth proportional to 20,548.53, 28,357.02 and 11,117.09 is: 15,341.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548.53 : 28,357.02 = 11,117.09 : x
  2. Step 2: Convert to fraction form
    20,548.53/28,357.02 = 11,117.09/x
  3. Step 3: Cross multiply
    20,548.53x = 28,357.02 × 11,117.09
  4. Step 4: Simplify right side
    20,548.53x = 315,247,614.36
  5. Step 5: Solve for x
    x = 315,247,614.36/20,548.53
  6. Step 6: Final answer
    x = 15,341.61

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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.