Home / 43,281.20-64,905.60-15,190.40

Finding the Fourth Proportional to 43,281.20, 64,905.60 and 15,190.40

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Solution

The fourth proportional to 43,281.20, 64,905.60 and 15,190.40 is: 22,779.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,281.20 : 64,905.60 = 15,190.40 : x
  2. Step 2: Convert to fraction form
    43,281.20/64,905.60 = 15,190.40/x
  3. Step 3: Cross multiply
    43,281.20x = 64,905.60 × 15,190.40
  4. Step 4: Simplify right side
    43,281.20x = 985,942,026.24
  5. Step 5: Solve for x
    x = 985,942,026.24/43,281.20
  6. Step 6: Final answer
    x = 22,779.91

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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.