Home / 39,458.46-54,416.52-30,845.76

Finding the Fourth Proportional to 39,458.46, 54,416.52 and 30,845.76

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Solution

The fourth proportional to 39,458.46, 54,416.52 and 30,845.76 is: 42,538.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,458.46 : 54,416.52 = 30,845.76 : x
  2. Step 2: Convert to fraction form
    39,458.46/54,416.52 = 30,845.76/x
  3. Step 3: Cross multiply
    39,458.46x = 54,416.52 × 30,845.76
  4. Step 4: Simplify right side
    39,458.46x = 1,678,518,915.96
  5. Step 5: Solve for x
    x = 1,678,518,915.96/39,458.46
  6. Step 6: Final answer
    x = 42,538.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.