Home / 19,681.78-27,157.08-11,617.96

Finding the Fourth Proportional to 19,681.78, 27,157.08 and 11,617.96

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Solution

The fourth proportional to 19,681.78, 27,157.08 and 11,617.96 is: 16,030.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.78 : 27,157.08 = 11,617.96 : x
  2. Step 2: Convert to fraction form
    19,681.78/27,157.08 = 11,617.96/x
  3. Step 3: Cross multiply
    19,681.78x = 27,157.08 × 11,617.96
  4. Step 4: Simplify right side
    19,681.78x = 315,509,869.16
  5. Step 5: Solve for x
    x = 315,509,869.16/19,681.78
  6. Step 6: Final answer
    x = 16,030.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.