Home / 49,387.40-74,064.90-18,218.60

Finding the Fourth Proportional to 49,387.40, 74,064.90 and 18,218.60

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Solution

The fourth proportional to 49,387.40, 74,064.90 and 18,218.60 is: 27,321.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,387.40 : 74,064.90 = 18,218.60 : x
  2. Step 2: Convert to fraction form
    49,387.40/74,064.90 = 18,218.60/x
  3. Step 3: Cross multiply
    49,387.40x = 74,064.90 × 18,218.60
  4. Step 4: Simplify right side
    49,387.40x = 1,349,358,787.14
  5. Step 5: Solve for x
    x = 1,349,358,787.14/49,387.40
  6. Step 6: Final answer
    x = 27,321.92

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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.