Home / 43,178.07-64,775.84-18,218.17

Finding the Fourth Proportional to 43,178.07, 64,775.84 and 18,218.17

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Solution

The fourth proportional to 43,178.07, 64,775.84 and 18,218.17 is: 27,330.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,178.07 : 64,775.84 = 18,218.17 : x
  2. Step 2: Convert to fraction form
    43,178.07/64,775.84 = 18,218.17/x
  3. Step 3: Cross multiply
    43,178.07x = 64,775.84 × 18,218.17
  4. Step 4: Simplify right side
    43,178.07x = 1,180,097,173.92
  5. Step 5: Solve for x
    x = 1,180,097,173.92/43,178.07
  6. Step 6: Final answer
    x = 27,330.94

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1.5x scale

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.