Home / 38,280.60-57,426.30-11,982.60

Finding the Fourth Proportional to 38,280.60, 57,426.30 and 11,982.60

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Solution

The fourth proportional to 38,280.60, 57,426.30 and 11,982.60 is: 17,975.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,280.60 : 57,426.30 = 11,982.60 : x
  2. Step 2: Convert to fraction form
    38,280.60/57,426.30 = 11,982.60/x
  3. Step 3: Cross multiply
    38,280.60x = 57,426.30 × 11,982.60
  4. Step 4: Simplify right side
    38,280.60x = 688,116,382.38
  5. Step 5: Solve for x
    x = 688,116,382.38/38,280.60
  6. Step 6: Final answer
    x = 17,975.59

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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.