Home / 19,991.24-27,591.47-11,925.39

Finding the Fourth Proportional to 19,991.24, 27,591.47 and 11,925.39

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Solution

The fourth proportional to 19,991.24, 27,591.47 and 11,925.39 is: 16,459.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.24 : 27,591.47 = 11,925.39 : x
  2. Step 2: Convert to fraction form
    19,991.24/27,591.47 = 11,925.39/x
  3. Step 3: Cross multiply
    19,991.24x = 27,591.47 × 11,925.39
  4. Step 4: Simplify right side
    19,991.24x = 329,038,980.80
  5. Step 5: Solve for x
    x = 329,038,980.80/19,991.24
  6. Step 6: Final answer
    x = 16,459.16

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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.