Home / 20,437.02-28,201.55-11,482.83

Finding the Fourth Proportional to 20,437.02, 28,201.55 and 11,482.83

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Solution

The fourth proportional to 20,437.02, 28,201.55 and 11,482.83 is: 15,845.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.02 : 28,201.55 = 11,482.83 : x
  2. Step 2: Convert to fraction form
    20,437.02/28,201.55 = 11,482.83/x
  3. Step 3: Cross multiply
    20,437.02x = 28,201.55 × 11,482.83
  4. Step 4: Simplify right side
    20,437.02x = 323,833,546.97
  5. Step 5: Solve for x
    x = 323,833,546.97/20,437.02
  6. Step 6: Final answer
    x = 15,845.44

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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.