Home / 20,833.32-28,749.24-12,448.20

Finding the Fourth Proportional to 20,833.32, 28,749.24 and 12,448.20

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Solution

The fourth proportional to 20,833.32, 28,749.24 and 12,448.20 is: 17,178.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.32 : 28,749.24 = 12,448.20 : x
  2. Step 2: Convert to fraction form
    20,833.32/28,749.24 = 12,448.20/x
  3. Step 3: Cross multiply
    20,833.32x = 28,749.24 × 12,448.20
  4. Step 4: Simplify right side
    20,833.32x = 357,876,289.37
  5. Step 5: Solve for x
    x = 357,876,289.37/20,833.32
  6. Step 6: Final answer
    x = 17,178.07

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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.