Home / 29,478.09-40,666.61-19,914.90

Finding the Fourth Proportional to 29,478.09, 40,666.61 and 19,914.90

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Solution

The fourth proportional to 29,478.09, 40,666.61 and 19,914.90 is: 27,473.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,478.09 : 40,666.61 = 19,914.90 : x
  2. Step 2: Convert to fraction form
    29,478.09/40,666.61 = 19,914.90/x
  3. Step 3: Cross multiply
    29,478.09x = 40,666.61 × 19,914.90
  4. Step 4: Simplify right side
    29,478.09x = 809,871,471.49
  5. Step 5: Solve for x
    x = 809,871,471.49/29,478.09
  6. Step 6: Final answer
    x = 27,473.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.