Home / 28,218.22-38,939.52-15,468.94

Finding the Fourth Proportional to 28,218.22, 38,939.52 and 15,468.94

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Solution

The fourth proportional to 28,218.22, 38,939.52 and 15,468.94 is: 21,346.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.22 : 38,939.52 = 15,468.94 : x
  2. Step 2: Convert to fraction form
    28,218.22/38,939.52 = 15,468.94/x
  3. Step 3: Cross multiply
    28,218.22x = 38,939.52 × 15,468.94
  4. Step 4: Simplify right side
    28,218.22x = 602,353,098.51
  5. Step 5: Solve for x
    x = 602,353,098.51/28,218.22
  6. Step 6: Final answer
    x = 21,346.25

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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.