Home / 37,775.34-52,128.36-20,778.50

Finding the Fourth Proportional to 37,775.34, 52,128.36 and 20,778.50

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Solution

The fourth proportional to 37,775.34, 52,128.36 and 20,778.50 is: 28,673.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,775.34 : 52,128.36 = 20,778.50 : x
  2. Step 2: Convert to fraction form
    37,775.34/52,128.36 = 20,778.50/x
  3. Step 3: Cross multiply
    37,775.34x = 52,128.36 × 20,778.50
  4. Step 4: Simplify right side
    37,775.34x = 1,083,149,128.26
  5. Step 5: Solve for x
    x = 1,083,149,128.26/37,775.34
  6. Step 6: Final answer
    x = 28,673.44

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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.