Home / 19,569.11-29,327.70-10,661.59

Finding the Fourth Proportional to 19,569.11, 29,327.70 and 10,661.59

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Solution

The fourth proportional to 19,569.11, 29,327.70 and 10,661.59 is: 15,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,569.11 : 29,327.70 = 10,661.59 : x
  2. Step 2: Convert to fraction form
    19,569.11/29,327.70 = 10,661.59/x
  3. Step 3: Cross multiply
    19,569.11x = 29,327.70 × 10,661.59
  4. Step 4: Simplify right side
    19,569.11x = 312,679,913.04
  5. Step 5: Solve for x
    x = 312,679,913.04/19,569.11
  6. Step 6: Final answer
    x = 15,978.24

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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.