Home / 28,233.36-38,979.88-18,166.48

Finding the Fourth Proportional to 28,233.36, 38,979.88 and 18,166.48

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Solution

The fourth proportional to 28,233.36, 38,979.88 and 18,166.48 is: 25,081.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233.36 : 38,979.88 = 18,166.48 : x
  2. Step 2: Convert to fraction form
    28,233.36/38,979.88 = 18,166.48/x
  3. Step 3: Cross multiply
    28,233.36x = 38,979.88 × 18,166.48
  4. Step 4: Simplify right side
    28,233.36x = 708,127,210.42
  5. Step 5: Solve for x
    x = 708,127,210.42/28,233.36
  6. Step 6: Final answer
    x = 25,081.22

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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.