Home / 38,550.12-53,198.94-20,886.12

Finding the Fourth Proportional to 38,550.12, 53,198.94 and 20,886.12

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Solution

The fourth proportional to 38,550.12, 53,198.94 and 20,886.12 is: 28,822.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,550.12 : 53,198.94 = 20,886.12 : x
  2. Step 2: Convert to fraction form
    38,550.12/53,198.94 = 20,886.12/x
  3. Step 3: Cross multiply
    38,550.12x = 53,198.94 × 20,886.12
  4. Step 4: Simplify right side
    38,550.12x = 1,111,119,444.71
  5. Step 5: Solve for x
    x = 1,111,119,444.71/38,550.12
  6. Step 6: Final answer
    x = 28,822.72

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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.