Home / 38,931.54-58,287.12-30,267.78

Finding the Fourth Proportional to 38,931.54, 58,287.12 and 30,267.78

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Solution

The fourth proportional to 38,931.54, 58,287.12 and 30,267.78 is: 45,316.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,931.54 : 58,287.12 = 30,267.78 : x
  2. Step 2: Convert to fraction form
    38,931.54/58,287.12 = 30,267.78/x
  3. Step 3: Cross multiply
    38,931.54x = 58,287.12 × 30,267.78
  4. Step 4: Simplify right side
    38,931.54x = 1,764,221,724.99
  5. Step 5: Solve for x
    x = 1,764,221,724.99/38,931.54
  6. Step 6: Final answer
    x = 45,316.00

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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.