Home / 42,674.13-63,979.49-20,466.36

Finding the Fourth Proportional to 42,674.13, 63,979.49 and 20,466.36

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Solution

The fourth proportional to 42,674.13, 63,979.49 and 20,466.36 is: 30,684.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,674.13 : 63,979.49 = 20,466.36 : x
  2. Step 2: Convert to fraction form
    42,674.13/63,979.49 = 20,466.36/x
  3. Step 3: Cross multiply
    42,674.13x = 63,979.49 × 20,466.36
  4. Step 4: Simplify right side
    42,674.13x = 1,309,427,172.62
  5. Step 5: Solve for x
    x = 1,309,427,172.62/42,674.13
  6. Step 6: Final answer
    x = 30,684.33

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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.