Home / 39,150.24-58,744.80-19,428

Finding the Fourth Proportional to 39,150.24, 58,744.80 and 19,428

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Solution

The fourth proportional to 39,150.24, 58,744.80 and 19,428 is: 29,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,150.24 : 58,744.80 = 19,428 : x
  2. Step 2: Convert to fraction form
    39,150.24/58,744.80 = 19,428/x
  3. Step 3: Cross multiply
    39,150.24x = 58,744.80 × 19,428
  4. Step 4: Simplify right side
    39,150.24x = 1,141,293,974.40
  5. Step 5: Solve for x
    x = 1,141,293,974.40/39,150.24
  6. Step 6: Final answer
    x = 29,151.65

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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.