Home / 37,775.43-52,131.47-20,780.99

Finding the Fourth Proportional to 37,775.43, 52,131.47 and 20,780.99

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Solution

The fourth proportional to 37,775.43, 52,131.47 and 20,780.99 is: 28,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,775.43 : 52,131.47 = 20,780.99 : x
  2. Step 2: Convert to fraction form
    37,775.43/52,131.47 = 20,780.99/x
  3. Step 3: Cross multiply
    37,775.43x = 52,131.47 × 20,780.99
  4. Step 4: Simplify right side
    37,775.43x = 1,083,343,387.69
  5. Step 5: Solve for x
    x = 1,083,343,387.69/37,775.43
  6. Step 6: Final answer
    x = 28,678.52

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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.