Home / 39,471.02-54,469.37-21,565.64

Finding the Fourth Proportional to 39,471.02, 54,469.37 and 21,565.64

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Solution

The fourth proportional to 39,471.02, 54,469.37 and 21,565.64 is: 29,760.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,471.02 : 54,469.37 = 21,565.64 : x
  2. Step 2: Convert to fraction form
    39,471.02/54,469.37 = 21,565.64/x
  3. Step 3: Cross multiply
    39,471.02x = 54,469.37 × 21,565.64
  4. Step 4: Simplify right side
    39,471.02x = 1,174,666,824.45
  5. Step 5: Solve for x
    x = 1,174,666,824.45/39,471.02
  6. Step 6: Final answer
    x = 29,760.23

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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.