Home / 19,586.78-27,030.30-11,087.18

Finding the Fourth Proportional to 19,586.78, 27,030.30 and 11,087.18

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Solution

The fourth proportional to 19,586.78, 27,030.30 and 11,087.18 is: 15,300.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,586.78 : 27,030.30 = 11,087.18 : x
  2. Step 2: Convert to fraction form
    19,586.78/27,030.30 = 11,087.18/x
  3. Step 3: Cross multiply
    19,586.78x = 27,030.30 × 11,087.18
  4. Step 4: Simplify right side
    19,586.78x = 299,689,801.55
  5. Step 5: Solve for x
    x = 299,689,801.55/19,586.78
  6. Step 6: Final answer
    x = 15,300.62

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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.