Home / 37,778.76-52,133.05-20,781.93

Finding the Fourth Proportional to 37,778.76, 52,133.05 and 20,781.93

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Solution

The fourth proportional to 37,778.76, 52,133.05 and 20,781.93 is: 28,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,778.76 : 52,133.05 = 20,781.93 : x
  2. Step 2: Convert to fraction form
    37,778.76/52,133.05 = 20,781.93/x
  3. Step 3: Cross multiply
    37,778.76x = 52,133.05 × 20,781.93
  4. Step 4: Simplify right side
    37,778.76x = 1,083,425,031.21
  5. Step 5: Solve for x
    x = 1,083,425,031.21/37,778.76
  6. Step 6: Final answer
    x = 28,678.15

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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.