Home / 20,544.31-28,365.02-13,482.73

Finding the Fourth Proportional to 20,544.31, 28,365.02 and 13,482.73

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Solution

The fourth proportional to 20,544.31, 28,365.02 and 13,482.73 is: 18,615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.31 : 28,365.02 = 13,482.73 : x
  2. Step 2: Convert to fraction form
    20,544.31/28,365.02 = 13,482.73/x
  3. Step 3: Cross multiply
    20,544.31x = 28,365.02 × 13,482.73
  4. Step 4: Simplify right side
    20,544.31x = 382,437,906.10
  5. Step 5: Solve for x
    x = 382,437,906.10/20,544.31
  6. Step 6: Final answer
    x = 18,615.27

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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.