Home / 20,854,926.92-28,781,503.46-11,565,406.28

Finding the Fourth Proportional to 20,854,926.92, 28,781,503.46 and 11,565,406.28

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Solution

The fourth proportional to 20,854,926.92, 28,781,503.46 and 11,565,406.28 is: 15,961,205.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,854,926.92 : 28,781,503.46 = 11,565,406.28 : x
  2. Step 2: Convert to fraction form
    20,854,926.92/28,781,503.46 = 11,565,406.28/x
  3. Step 3: Cross multiply
    20,854,926.92x = 28,781,503.46 × 11,565,406.28
  4. Step 4: Simplify right side
    20,854,926.92x = 332,869,780,662,391.19
  5. Step 5: Solve for x
    x = 332,869,780,662,391.19/20,854,926.92
  6. Step 6: Final answer
    x = 15,961,205.81

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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.