Home / 25,501.81-35,190.78-15,435.84

Finding the Fourth Proportional to 25,501.81, 35,190.78 and 15,435.84

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Solution

The fourth proportional to 25,501.81, 35,190.78 and 15,435.84 is: 21,300.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,501.81 : 35,190.78 = 15,435.84 : x
  2. Step 2: Convert to fraction form
    25,501.81/35,190.78 = 15,435.84/x
  3. Step 3: Cross multiply
    25,501.81x = 35,190.78 × 15,435.84
  4. Step 4: Simplify right side
    25,501.81x = 543,199,249.56
  5. Step 5: Solve for x
    x = 543,199,249.56/25,501.81
  6. Step 6: Final answer
    x = 21,300.42

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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.