Home / 37,780.39-52,135.89-20,784.55

Finding the Fourth Proportional to 37,780.39, 52,135.89 and 20,784.55

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Solution

The fourth proportional to 37,780.39, 52,135.89 and 20,784.55 is: 28,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,780.39 : 52,135.89 = 20,784.55 : x
  2. Step 2: Convert to fraction form
    37,780.39/52,135.89 = 20,784.55/x
  3. Step 3: Cross multiply
    37,780.39x = 52,135.89 × 20,784.55
  4. Step 4: Simplify right side
    37,780.39x = 1,083,621,012.50
  5. Step 5: Solve for x
    x = 1,083,621,012.50/37,780.39
  6. Step 6: Final answer
    x = 28,682.10

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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.