Home / 28,247.08-38,976.90-18,189.16

Finding the Fourth Proportional to 28,247.08, 38,976.90 and 18,189.16

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Solution

The fourth proportional to 28,247.08, 38,976.90 and 18,189.16 is: 25,098.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.08 : 38,976.90 = 18,189.16 : x
  2. Step 2: Convert to fraction form
    28,247.08/38,976.90 = 18,189.16/x
  3. Step 3: Cross multiply
    28,247.08x = 38,976.90 × 18,189.16
  4. Step 4: Simplify right side
    28,247.08x = 708,956,904.75
  5. Step 5: Solve for x
    x = 708,956,904.75/28,247.08
  6. Step 6: Final answer
    x = 25,098.41

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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.