Home / 43,875.60-65,818.80-15,791.28

Finding the Fourth Proportional to 43,875.60, 65,818.80 and 15,791.28

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Solution

The fourth proportional to 43,875.60, 65,818.80 and 15,791.28 is: 23,688.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,875.60 : 65,818.80 = 15,791.28 : x
  2. Step 2: Convert to fraction form
    43,875.60/65,818.80 = 15,791.28/x
  3. Step 3: Cross multiply
    43,875.60x = 65,818.80 × 15,791.28
  4. Step 4: Simplify right side
    43,875.60x = 1,039,363,100.06
  5. Step 5: Solve for x
    x = 1,039,363,100.06/43,875.60
  6. Step 6: Final answer
    x = 23,688.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.