Home / 19,571.65-29,368.42-7,885.78

Finding the Fourth Proportional to 19,571.65, 29,368.42 and 7,885.78

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Solution

The fourth proportional to 19,571.65, 29,368.42 and 7,885.78 is: 11,833.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,571.65 : 29,368.42 = 7,885.78 : x
  2. Step 2: Convert to fraction form
    19,571.65/29,368.42 = 7,885.78/x
  3. Step 3: Cross multiply
    19,571.65x = 29,368.42 × 7,885.78
  4. Step 4: Simplify right side
    19,571.65x = 231,592,805.93
  5. Step 5: Solve for x
    x = 231,592,805.93/19,571.65
  6. Step 6: Final answer
    x = 11,833.08

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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.