Home / 21,088.22-31,601.10-9,231.03

Finding the Fourth Proportional to 21,088.22, 31,601.10 and 9,231.03

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Solution

The fourth proportional to 21,088.22, 31,601.10 and 9,231.03 is: 13,832.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,088.22 : 31,601.10 = 9,231.03 : x
  2. Step 2: Convert to fraction form
    21,088.22/31,601.10 = 9,231.03/x
  3. Step 3: Cross multiply
    21,088.22x = 31,601.10 × 9,231.03
  4. Step 4: Simplify right side
    21,088.22x = 291,710,736.75
  5. Step 5: Solve for x
    x = 291,710,736.75/21,088.22
  6. Step 6: Final answer
    x = 13,832.88

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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.