Home / 33,031.90-49,514.59-18,987.72

Finding the Fourth Proportional to 33,031.90, 49,514.59 and 18,987.72

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Solution

The fourth proportional to 33,031.90, 49,514.59 and 18,987.72 is: 28,462.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,031.90 : 49,514.59 = 18,987.72 : x
  2. Step 2: Convert to fraction form
    33,031.90/49,514.59 = 18,987.72/x
  3. Step 3: Cross multiply
    33,031.90x = 49,514.59 × 18,987.72
  4. Step 4: Simplify right side
    33,031.90x = 940,169,008.89
  5. Step 5: Solve for x
    x = 940,169,008.89/33,031.90
  6. Step 6: Final answer
    x = 28,462.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.