Home / 28,145.22-38,805.12-18,055.86

Finding the Fourth Proportional to 28,145.22, 38,805.12 and 18,055.86

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Solution

The fourth proportional to 28,145.22, 38,805.12 and 18,055.86 is: 24,894.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145.22 : 38,805.12 = 18,055.86 : x
  2. Step 2: Convert to fraction form
    28,145.22/38,805.12 = 18,055.86/x
  3. Step 3: Cross multiply
    28,145.22x = 38,805.12 × 18,055.86
  4. Step 4: Simplify right side
    28,145.22x = 700,659,814.00
  5. Step 5: Solve for x
    x = 700,659,814.00/28,145.22
  6. Step 6: Final answer
    x = 24,894.45

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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.