Home / 43,238.42-64,864.32-18,278.56

Finding the Fourth Proportional to 43,238.42, 64,864.32 and 18,278.56

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Solution

The fourth proportional to 43,238.42, 64,864.32 and 18,278.56 is: 27,420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,238.42 : 64,864.32 = 18,278.56 : x
  2. Step 2: Convert to fraction form
    43,238.42/64,864.32 = 18,278.56/x
  3. Step 3: Cross multiply
    43,238.42x = 64,864.32 × 18,278.56
  4. Step 4: Simplify right side
    43,238.42x = 1,185,626,364.98
  5. Step 5: Solve for x
    x = 1,185,626,364.98/43,238.42
  6. Step 6: Final answer
    x = 27,420.67

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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.