Home / 42,986.94-64,459.67-18,020.29

Finding the Fourth Proportional to 42,986.94, 64,459.67 and 18,020.29

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Solution

The fourth proportional to 42,986.94, 64,459.67 and 18,020.29 is: 27,021.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,986.94 : 64,459.67 = 18,020.29 : x
  2. Step 2: Convert to fraction form
    42,986.94/64,459.67 = 18,020.29/x
  3. Step 3: Cross multiply
    42,986.94x = 64,459.67 × 18,020.29
  4. Step 4: Simplify right side
    42,986.94x = 1,161,581,946.70
  5. Step 5: Solve for x
    x = 1,161,581,946.70/42,986.94
  6. Step 6: Final answer
    x = 27,021.74

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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.