Home / 20,496.24-28,285.38-12,538.26

Finding the Fourth Proportional to 20,496.24, 28,285.38 and 12,538.26

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Solution

The fourth proportional to 20,496.24, 28,285.38 and 12,538.26 is: 17,303.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,496.24 : 28,285.38 = 12,538.26 : x
  2. Step 2: Convert to fraction form
    20,496.24/28,285.38 = 12,538.26/x
  3. Step 3: Cross multiply
    20,496.24x = 28,285.38 × 12,538.26
  4. Step 4: Simplify right side
    20,496.24x = 354,649,448.64
  5. Step 5: Solve for x
    x = 354,649,448.64/20,496.24
  6. Step 6: Final answer
    x = 17,303.15

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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.