Home / 37,780.60-52,136.10-20,784.82

Finding the Fourth Proportional to 37,780.60, 52,136.10 and 20,784.82

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Solution

The fourth proportional to 37,780.60, 52,136.10 and 20,784.82 is: 28,682.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,780.60 : 52,136.10 = 20,784.82 : x
  2. Step 2: Convert to fraction form
    37,780.60/52,136.10 = 20,784.82/x
  3. Step 3: Cross multiply
    37,780.60x = 52,136.10 × 20,784.82
  4. Step 4: Simplify right side
    37,780.60x = 1,083,639,454.00
  5. Step 5: Solve for x
    x = 1,083,639,454.00/37,780.60
  6. Step 6: Final answer
    x = 28,682.43

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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.