Home / 37,688.80-56,533.20-20,149.60

Finding the Fourth Proportional to 37,688.80, 56,533.20 and 20,149.60

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Solution

The fourth proportional to 37,688.80, 56,533.20 and 20,149.60 is: 30,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,688.80 : 56,533.20 = 20,149.60 : x
  2. Step 2: Convert to fraction form
    37,688.80/56,533.20 = 20,149.60/x
  3. Step 3: Cross multiply
    37,688.80x = 56,533.20 × 20,149.60
  4. Step 4: Simplify right side
    37,688.80x = 1,139,121,366.72
  5. Step 5: Solve for x
    x = 1,139,121,366.72/37,688.80
  6. Step 6: Final answer
    x = 30,224.40

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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.