Home / 28,047.87-42,076.26-10,519.02

Finding the Fourth Proportional to 28,047.87, 42,076.26 and 10,519.02

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Solution

The fourth proportional to 28,047.87, 42,076.26 and 10,519.02 is: 15,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.87 : 42,076.26 = 10,519.02 : x
  2. Step 2: Convert to fraction form
    28,047.87/42,076.26 = 10,519.02/x
  3. Step 3: Cross multiply
    28,047.87x = 42,076.26 × 10,519.02
  4. Step 4: Simplify right side
    28,047.87x = 442,601,020.47
  5. Step 5: Solve for x
    x = 442,601,020.47/28,047.87
  6. Step 6: Final answer
    x = 15,780.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.