Home / 28,174.08-38,864.52-18,091.20

Finding the Fourth Proportional to 28,174.08, 38,864.52 and 18,091.20

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Solution

The fourth proportional to 28,174.08, 38,864.52 and 18,091.20 is: 24,955.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,174.08 : 38,864.52 = 18,091.20 : x
  2. Step 2: Convert to fraction form
    28,174.08/38,864.52 = 18,091.20/x
  3. Step 3: Cross multiply
    28,174.08x = 38,864.52 × 18,091.20
  4. Step 4: Simplify right side
    28,174.08x = 703,105,804.22
  5. Step 5: Solve for x
    x = 703,105,804.22/28,174.08
  6. Step 6: Final answer
    x = 24,955.77

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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.