Home / 43,320.42-64,967.40-18,360

Finding the Fourth Proportional to 43,320.42, 64,967.40 and 18,360

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Solution

The fourth proportional to 43,320.42, 64,967.40 and 18,360 is: 27,534.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,320.42 : 64,967.40 = 18,360 : x
  2. Step 2: Convert to fraction form
    43,320.42/64,967.40 = 18,360/x
  3. Step 3: Cross multiply
    43,320.42x = 64,967.40 × 18,360
  4. Step 4: Simplify right side
    43,320.42x = 1,192,801,464
  5. Step 5: Solve for x
    x = 1,192,801,464/43,320.42
  6. Step 6: Final answer
    x = 27,534.39

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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.