Home / 37,053.60-55,580.40-20,407.20

Finding the Fourth Proportional to 37,053.60, 55,580.40 and 20,407.20

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Solution

The fourth proportional to 37,053.60, 55,580.40 and 20,407.20 is: 30,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,053.60 : 55,580.40 = 20,407.20 : x
  2. Step 2: Convert to fraction form
    37,053.60/55,580.40 = 20,407.20/x
  3. Step 3: Cross multiply
    37,053.60x = 55,580.40 × 20,407.20
  4. Step 4: Simplify right side
    37,053.60x = 1,134,240,338.88
  5. Step 5: Solve for x
    x = 1,134,240,338.88/37,053.60
  6. Step 6: Final answer
    x = 30,610.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.