Home / 38,393.20-57,622.20-18,688.60

Finding the Fourth Proportional to 38,393.20, 57,622.20 and 18,688.60

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Solution

The fourth proportional to 38,393.20, 57,622.20 and 18,688.60 is: 28,048.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,393.20 : 57,622.20 = 18,688.60 : x
  2. Step 2: Convert to fraction form
    38,393.20/57,622.20 = 18,688.60/x
  3. Step 3: Cross multiply
    38,393.20x = 57,622.20 × 18,688.60
  4. Step 4: Simplify right side
    38,393.20x = 1,076,878,246.92
  5. Step 5: Solve for x
    x = 1,076,878,246.92/38,393.20
  6. Step 6: Final answer
    x = 28,048.67

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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.