Home / 57,660.48-86,490.21-18,217.60

Finding the Fourth Proportional to 57,660.48, 86,490.21 and 18,217.60

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Solution

The fourth proportional to 57,660.48, 86,490.21 and 18,217.60 is: 27,326.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,660.48 : 86,490.21 = 18,217.60 : x
  2. Step 2: Convert to fraction form
    57,660.48/86,490.21 = 18,217.60/x
  3. Step 3: Cross multiply
    57,660.48x = 86,490.21 × 18,217.60
  4. Step 4: Simplify right side
    57,660.48x = 1,575,643,833.47
  5. Step 5: Solve for x
    x = 1,575,643,833.47/57,660.48
  6. Step 6: Final answer
    x = 27,326.24

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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.