Home / 19,681.84-27,159.87-11,298.34

Finding the Fourth Proportional to 19,681.84, 27,159.87 and 11,298.34

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Solution

The fourth proportional to 19,681.84, 27,159.87 and 11,298.34 is: 15,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.84 : 27,159.87 = 11,298.34 : x
  2. Step 2: Convert to fraction form
    19,681.84/27,159.87 = 11,298.34/x
  3. Step 3: Cross multiply
    19,681.84x = 27,159.87 × 11,298.34
  4. Step 4: Simplify right side
    19,681.84x = 306,861,445.62
  5. Step 5: Solve for x
    x = 306,861,445.62/19,681.84
  6. Step 6: Final answer
    x = 15,591.10

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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.