Home / 19,587.30-27,031.23-11,089.78

Finding the Fourth Proportional to 19,587.30, 27,031.23 and 11,089.78

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Solution

The fourth proportional to 19,587.30, 27,031.23 and 11,089.78 is: 15,304.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.30 : 27,031.23 = 11,089.78 : x
  2. Step 2: Convert to fraction form
    19,587.30/27,031.23 = 11,089.78/x
  3. Step 3: Cross multiply
    19,587.30x = 27,031.23 × 11,089.78
  4. Step 4: Simplify right side
    19,587.30x = 299,770,393.83
  5. Step 5: Solve for x
    x = 299,770,393.83/19,587.30
  6. Step 6: Final answer
    x = 15,304.32

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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.