Home / 43,655.49-65,428.41-18,666.18

Finding the Fourth Proportional to 43,655.49, 65,428.41 and 18,666.18

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Solution

The fourth proportional to 43,655.49, 65,428.41 and 18,666.18 is: 27,975.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,655.49 : 65,428.41 = 18,666.18 : x
  2. Step 2: Convert to fraction form
    43,655.49/65,428.41 = 18,666.18/x
  3. Step 3: Cross multiply
    43,655.49x = 65,428.41 × 18,666.18
  4. Step 4: Simplify right side
    43,655.49x = 1,221,298,478.17
  5. Step 5: Solve for x
    x = 1,221,298,478.17/43,655.49
  6. Step 6: Final answer
    x = 27,975.83

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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.