Home / 25,621.56-35,357.76-15,020.28

Finding the Fourth Proportional to 25,621.56, 35,357.76 and 15,020.28

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Solution

The fourth proportional to 25,621.56, 35,357.76 and 15,020.28 is: 20,727.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,621.56 : 35,357.76 = 15,020.28 : x
  2. Step 2: Convert to fraction form
    25,621.56/35,357.76 = 15,020.28/x
  3. Step 3: Cross multiply
    25,621.56x = 35,357.76 × 15,020.28
  4. Step 4: Simplify right side
    25,621.56x = 531,083,455.37
  5. Step 5: Solve for x
    x = 531,083,455.37/25,621.56
  6. Step 6: Final answer
    x = 20,727.99

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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.