Home / 43,557.12-65,343.36-15,485.76

Finding the Fourth Proportional to 43,557.12, 65,343.36 and 15,485.76

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Solution

The fourth proportional to 43,557.12, 65,343.36 and 15,485.76 is: 23,231.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,557.12 : 65,343.36 = 15,485.76 : x
  2. Step 2: Convert to fraction form
    43,557.12/65,343.36 = 15,485.76/x
  3. Step 3: Cross multiply
    43,557.12x = 65,343.36 × 15,485.76
  4. Step 4: Simplify right side
    43,557.12x = 1,011,891,590.55
  5. Step 5: Solve for x
    x = 1,011,891,590.55/43,557.12
  6. Step 6: Final answer
    x = 23,231.37

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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.