Home / 18,238.16-25,168.31-10,280.23

Finding the Fourth Proportional to 18,238.16, 25,168.31 and 10,280.23

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Solution

The fourth proportional to 18,238.16, 25,168.31 and 10,280.23 is: 14,186.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.16 : 25,168.31 = 10,280.23 : x
  2. Step 2: Convert to fraction form
    18,238.16/25,168.31 = 10,280.23/x
  3. Step 3: Cross multiply
    18,238.16x = 25,168.31 × 10,280.23
  4. Step 4: Simplify right side
    18,238.16x = 258,736,015.51
  5. Step 5: Solve for x
    x = 258,736,015.51/18,238.16
  6. Step 6: Final answer
    x = 14,186.52

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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.