Home / 39,281.64-54,208.10-21,617.64

Finding the Fourth Proportional to 39,281.64, 54,208.10 and 21,617.64

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Solution

The fourth proportional to 39,281.64, 54,208.10 and 21,617.64 is: 29,832.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,281.64 : 54,208.10 = 21,617.64 : x
  2. Step 2: Convert to fraction form
    39,281.64/54,208.10 = 21,617.64/x
  3. Step 3: Cross multiply
    39,281.64x = 54,208.10 × 21,617.64
  4. Step 4: Simplify right side
    39,281.64x = 1,171,851,190.88
  5. Step 5: Solve for x
    x = 1,171,851,190.88/39,281.64
  6. Step 6: Final answer
    x = 29,832.03

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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.