Home / 37,126.15-51,233.89-20,130.77

Finding the Fourth Proportional to 37,126.15, 51,233.89 and 20,130.77

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Solution

The fourth proportional to 37,126.15, 51,233.89 and 20,130.77 is: 27,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,126.15 : 51,233.89 = 20,130.77 : x
  2. Step 2: Convert to fraction form
    37,126.15/51,233.89 = 20,130.77/x
  3. Step 3: Cross multiply
    37,126.15x = 51,233.89 × 20,130.77
  4. Step 4: Simplify right side
    37,126.15x = 1,031,377,467.68
  5. Step 5: Solve for x
    x = 1,031,377,467.68/37,126.15
  6. Step 6: Final answer
    x = 27,780.35

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Double scale
Find fourth proportional to 37,127.15, 51,235.27 and 20,131.77
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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.