Home / 35,878.77-49,521.23-21,728.88

Finding the Fourth Proportional to 35,878.77, 49,521.23 and 21,728.88

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Solution

The fourth proportional to 35,878.77, 49,521.23 and 21,728.88 is: 29,991.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,878.77 : 49,521.23 = 21,728.88 : x
  2. Step 2: Convert to fraction form
    35,878.77/49,521.23 = 21,728.88/x
  3. Step 3: Cross multiply
    35,878.77x = 49,521.23 × 21,728.88
  4. Step 4: Simplify right side
    35,878.77x = 1,076,040,864.12
  5. Step 5: Solve for x
    x = 1,076,040,864.12/35,878.77
  6. Step 6: Final answer
    x = 29,991.02

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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.