Home / 20,417,104.96-28,177,590.40-15,251,498.44

Finding the Fourth Proportional to 20,417,104.96, 28,177,590.40 and 15,251,498.44

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Solution

The fourth proportional to 20,417,104.96, 28,177,590.40 and 15,251,498.44 is: 21,048,551.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417,104.96 : 28,177,590.40 = 15,251,498.44 : x
  2. Step 2: Convert to fraction form
    20,417,104.96/28,177,590.40 = 15,251,498.44/x
  3. Step 3: Cross multiply
    20,417,104.96x = 28,177,590.40 × 15,251,498.44
  4. Step 4: Simplify right side
    20,417,104.96x = 429,750,476,028,558.94
  5. Step 5: Solve for x
    x = 429,750,476,028,558.94/20,417,104.96
  6. Step 6: Final answer
    x = 21,048,551.05

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Double scale
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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.