Home / 19,587.78-27,030.98-10,635.09

Finding the Fourth Proportional to 19,587.78, 27,030.98 and 10,635.09

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Solution

The fourth proportional to 19,587.78, 27,030.98 and 10,635.09 is: 14,676.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.78 : 27,030.98 = 10,635.09 : x
  2. Step 2: Convert to fraction form
    19,587.78/27,030.98 = 10,635.09/x
  3. Step 3: Cross multiply
    19,587.78x = 27,030.98 × 10,635.09
  4. Step 4: Simplify right side
    19,587.78x = 287,476,851.91
  5. Step 5: Solve for x
    x = 287,476,851.91/19,587.78
  6. Step 6: Final answer
    x = 14,676.34

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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.