Home / 38,348.60-57,457.20-30,475.40

Finding the Fourth Proportional to 38,348.60, 57,457.20 and 30,475.40

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Solution

The fourth proportional to 38,348.60, 57,457.20 and 30,475.40 is: 45,660.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,348.60 : 57,457.20 = 30,475.40 : x
  2. Step 2: Convert to fraction form
    38,348.60/57,457.20 = 30,475.40/x
  3. Step 3: Cross multiply
    38,348.60x = 57,457.20 × 30,475.40
  4. Step 4: Simplify right side
    38,348.60x = 1,751,031,152.88
  5. Step 5: Solve for x
    x = 1,751,031,152.88/38,348.60
  6. Step 6: Final answer
    x = 45,660.89

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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.