Home / 35,997-53,985.36-21,561.72

Finding the Fourth Proportional to 35,997, 53,985.36 and 21,561.72

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Solution

The fourth proportional to 35,997, 53,985.36 and 21,561.72 is: 32,336.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,997 : 53,985.36 = 21,561.72 : x
  2. Step 2: Convert to fraction form
    35,997/53,985.36 = 21,561.72/x
  3. Step 3: Cross multiply
    35,997x = 53,985.36 × 21,561.72
  4. Step 4: Simplify right side
    35,997x = 1,164,017,216.42
  5. Step 5: Solve for x
    x = 1,164,017,216.42/35,997
  6. Step 6: Final answer
    x = 32,336.51

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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.