Home / 38,281.76-57,439.08-13,308.20

Finding the Fourth Proportional to 38,281.76, 57,439.08 and 13,308.20

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Solution

The fourth proportional to 38,281.76, 57,439.08 and 13,308.20 is: 19,968.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,281.76 : 57,439.08 = 13,308.20 : x
  2. Step 2: Convert to fraction form
    38,281.76/57,439.08 = 13,308.20/x
  3. Step 3: Cross multiply
    38,281.76x = 57,439.08 × 13,308.20
  4. Step 4: Simplify right side
    38,281.76x = 764,410,764.46
  5. Step 5: Solve for x
    x = 764,410,764.46/38,281.76
  6. Step 6: Final answer
    x = 19,968.02

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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.