Home / 25,447.06-35,109.72-20,052.78

Finding the Fourth Proportional to 25,447.06, 35,109.72 and 20,052.78

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Solution

The fourth proportional to 25,447.06, 35,109.72 and 20,052.78 is: 27,667.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,447.06 : 35,109.72 = 20,052.78 : x
  2. Step 2: Convert to fraction form
    25,447.06/35,109.72 = 20,052.78/x
  3. Step 3: Cross multiply
    25,447.06x = 35,109.72 × 20,052.78
  4. Step 4: Simplify right side
    25,447.06x = 704,047,491.02
  5. Step 5: Solve for x
    x = 704,047,491.02/25,447.06
  6. Step 6: Final answer
    x = 27,667.14

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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.