Home / 28,212.60-38,933.91-15,464.94

Finding the Fourth Proportional to 28,212.60, 38,933.91 and 15,464.94

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Solution

The fourth proportional to 28,212.60, 38,933.91 and 15,464.94 is: 21,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,212.60 : 38,933.91 = 15,464.94 : x
  2. Step 2: Convert to fraction form
    28,212.60/38,933.91 = 15,464.94/x
  3. Step 3: Cross multiply
    28,212.60x = 38,933.91 × 15,464.94
  4. Step 4: Simplify right side
    28,212.60x = 602,110,582.12
  5. Step 5: Solve for x
    x = 602,110,582.12/28,212.60
  6. Step 6: Final answer
    x = 21,341.90

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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.