Home / 19,572.80-29,321.41-11,681.62

Finding the Fourth Proportional to 19,572.80, 29,321.41 and 11,681.62

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Solution

The fourth proportional to 19,572.80, 29,321.41 and 11,681.62 is: 17,499.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,572.80 : 29,321.41 = 11,681.62 : x
  2. Step 2: Convert to fraction form
    19,572.80/29,321.41 = 11,681.62/x
  3. Step 3: Cross multiply
    19,572.80x = 29,321.41 × 11,681.62
  4. Step 4: Simplify right side
    19,572.80x = 342,521,569.48
  5. Step 5: Solve for x
    x = 342,521,569.48/19,572.80
  6. Step 6: Final answer
    x = 17,499.88

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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.