Home / 20,837.60-28,726-14,858.90

Finding the Fourth Proportional to 20,837.60, 28,726 and 14,858.90

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Solution

The fourth proportional to 20,837.60, 28,726 and 14,858.90 is: 20,483.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837.60 : 28,726 = 14,858.90 : x
  2. Step 2: Convert to fraction form
    20,837.60/28,726 = 14,858.90/x
  3. Step 3: Cross multiply
    20,837.60x = 28,726 × 14,858.90
  4. Step 4: Simplify right side
    20,837.60x = 426,836,761.40
  5. Step 5: Solve for x
    x = 426,836,761.40/20,837.60
  6. Step 6: Final answer
    x = 20,483.97

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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.