Home / 28,112.46-38,803.26-18,559.32

Finding the Fourth Proportional to 28,112.46, 38,803.26 and 18,559.32

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Solution

The fourth proportional to 28,112.46, 38,803.26 and 18,559.32 is: 25,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,112.46 : 38,803.26 = 18,559.32 : x
  2. Step 2: Convert to fraction form
    28,112.46/38,803.26 = 18,559.32/x
  3. Step 3: Cross multiply
    28,112.46x = 38,803.26 × 18,559.32
  4. Step 4: Simplify right side
    28,112.46x = 720,162,119.38
  5. Step 5: Solve for x
    x = 720,162,119.38/28,112.46
  6. Step 6: Final answer
    x = 25,617.19

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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.