Home / 19,587.71-27,031.35-11,089.61

Finding the Fourth Proportional to 19,587.71, 27,031.35 and 11,089.61

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Solution

The fourth proportional to 19,587.71, 27,031.35 and 11,089.61 is: 15,303.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.71 : 27,031.35 = 11,089.61 : x
  2. Step 2: Convert to fraction form
    19,587.71/27,031.35 = 11,089.61/x
  3. Step 3: Cross multiply
    19,587.71x = 27,031.35 × 11,089.61
  4. Step 4: Simplify right side
    19,587.71x = 299,766,994.12
  5. Step 5: Solve for x
    x = 299,766,994.12/19,587.71
  6. Step 6: Final answer
    x = 15,303.83

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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.