Home / 20,916.03-28,864.44-11,484.59

Finding the Fourth Proportional to 20,916.03, 28,864.44 and 11,484.59

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Solution

The fourth proportional to 20,916.03, 28,864.44 and 11,484.59 is: 15,848.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916.03 : 28,864.44 = 11,484.59 : x
  2. Step 2: Convert to fraction form
    20,916.03/28,864.44 = 11,484.59/x
  3. Step 3: Cross multiply
    20,916.03x = 28,864.44 × 11,484.59
  4. Step 4: Simplify right side
    20,916.03x = 331,496,258.98
  5. Step 5: Solve for x
    x = 331,496,258.98/20,916.03
  6. Step 6: Final answer
    x = 15,848.91

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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.