Home / 20,417,102.96-28,177,587.64-15,251,496.44

Finding the Fourth Proportional to 20,417,102.96, 28,177,587.64 and 15,251,496.44

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Solution

The fourth proportional to 20,417,102.96, 28,177,587.64 and 15,251,496.44 is: 21,048,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417,102.96 : 28,177,587.64 = 15,251,496.44 : x
  2. Step 2: Convert to fraction form
    20,417,102.96/28,177,587.64 = 15,251,496.44/x
  3. Step 3: Cross multiply
    20,417,102.96x = 28,177,587.64 × 15,251,496.44
  4. Step 4: Simplify right side
    20,417,102.96x = 429,750,377,579,248
  5. Step 5: Solve for x
    x = 429,750,377,579,248/20,417,102.96
  6. Step 6: Final answer
    x = 21,048,548.29

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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.