Home / 69,428.28-104,142.42-19,506.36

Finding the Fourth Proportional to 69,428.28, 104,142.42 and 19,506.36

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Solution

The fourth proportional to 69,428.28, 104,142.42 and 19,506.36 is: 29,259.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,428.28 : 104,142.42 = 19,506.36 : x
  2. Step 2: Convert to fraction form
    69,428.28/104,142.42 = 19,506.36/x
  3. Step 3: Cross multiply
    69,428.28x = 104,142.42 × 19,506.36
  4. Step 4: Simplify right side
    69,428.28x = 2,031,439,535.79
  5. Step 5: Solve for x
    x = 2,031,439,535.79/69,428.28
  6. Step 6: Final answer
    x = 29,259.54

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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.