Home / 38,331.96-52,896.80-21,561.72

Finding the Fourth Proportional to 38,331.96, 52,896.80 and 21,561.72

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Solution

The fourth proportional to 38,331.96, 52,896.80 and 21,561.72 is: 29,754.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,331.96 : 52,896.80 = 21,561.72 : x
  2. Step 2: Convert to fraction form
    38,331.96/52,896.80 = 21,561.72/x
  3. Step 3: Cross multiply
    38,331.96x = 52,896.80 × 21,561.72
  4. Step 4: Simplify right side
    38,331.96x = 1,140,545,990.50
  5. Step 5: Solve for x
    x = 1,140,545,990.50/38,331.96
  6. Step 6: Final answer
    x = 29,754.44

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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.