Home / 19,715.87-29,569.81-7,231.65

Finding the Fourth Proportional to 19,715.87, 29,569.81 and 7,231.65

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Solution

The fourth proportional to 19,715.87, 29,569.81 and 7,231.65 is: 10,846.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.87 : 29,569.81 = 7,231.65 : x
  2. Step 2: Convert to fraction form
    19,715.87/29,569.81 = 7,231.65/x
  3. Step 3: Cross multiply
    19,715.87x = 29,569.81 × 7,231.65
  4. Step 4: Simplify right side
    19,715.87x = 213,838,332.48
  5. Step 5: Solve for x
    x = 213,838,332.48/19,715.87
  6. Step 6: Final answer
    x = 10,846.00

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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.