Home / 43,310.40-64,955.36-18,672.96

Finding the Fourth Proportional to 43,310.40, 64,955.36 and 18,672.96

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Solution

The fourth proportional to 43,310.40, 64,955.36 and 18,672.96 is: 28,005.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,310.40 : 64,955.36 = 18,672.96 : x
  2. Step 2: Convert to fraction form
    43,310.40/64,955.36 = 18,672.96/x
  3. Step 3: Cross multiply
    43,310.40x = 64,955.36 × 18,672.96
  4. Step 4: Simplify right side
    43,310.40x = 1,212,908,839.07
  5. Step 5: Solve for x
    x = 1,212,908,839.07/43,310.40
  6. Step 6: Final answer
    x = 28,005.03

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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.