Home / 20,497.13-28,281.09-11,544.63

Finding the Fourth Proportional to 20,497.13, 28,281.09 and 11,544.63

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Solution

The fourth proportional to 20,497.13, 28,281.09 and 11,544.63 is: 15,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,497.13 : 28,281.09 = 11,544.63 : x
  2. Step 2: Convert to fraction form
    20,497.13/28,281.09 = 11,544.63/x
  3. Step 3: Cross multiply
    20,497.13x = 28,281.09 × 11,544.63
  4. Step 4: Simplify right side
    20,497.13x = 326,494,657.28
  5. Step 5: Solve for x
    x = 326,494,657.28/20,497.13
  6. Step 6: Final answer
    x = 15,928.80

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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.