Home / 18,520.19-25,557.66-10,022.12

Finding the Fourth Proportional to 18,520.19, 25,557.66 and 10,022.12

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Solution

The fourth proportional to 18,520.19, 25,557.66 and 10,022.12 is: 13,830.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.19 : 25,557.66 = 10,022.12 : x
  2. Step 2: Convert to fraction form
    18,520.19/25,557.66 = 10,022.12/x
  3. Step 3: Cross multiply
    18,520.19x = 25,557.66 × 10,022.12
  4. Step 4: Simplify right side
    18,520.19x = 256,141,807.65
  5. Step 5: Solve for x
    x = 256,141,807.65/18,520.19
  6. Step 6: Final answer
    x = 13,830.41

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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.