Home / 25,406.39-35,039.16-20,091.98

Finding the Fourth Proportional to 25,406.39, 35,039.16 and 20,091.98

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Solution

The fourth proportional to 25,406.39, 35,039.16 and 20,091.98 is: 27,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,406.39 : 35,039.16 = 20,091.98 : x
  2. Step 2: Convert to fraction form
    25,406.39/35,039.16 = 20,091.98/x
  3. Step 3: Cross multiply
    25,406.39x = 35,039.16 × 20,091.98
  4. Step 4: Simplify right side
    25,406.39x = 704,005,926.74
  5. Step 5: Solve for x
    x = 704,005,926.74/25,406.39
  6. Step 6: Final answer
    x = 27,709.80

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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.