Home / 23,161.89-31,964.67-13,090.76

Finding the Fourth Proportional to 23,161.89, 31,964.67 and 13,090.76

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Solution

The fourth proportional to 23,161.89, 31,964.67 and 13,090.76 is: 18,065.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,161.89 : 31,964.67 = 13,090.76 : x
  2. Step 2: Convert to fraction form
    23,161.89/31,964.67 = 13,090.76/x
  3. Step 3: Cross multiply
    23,161.89x = 31,964.67 × 13,090.76
  4. Step 4: Simplify right side
    23,161.89x = 418,441,663.63
  5. Step 5: Solve for x
    x = 418,441,663.63/23,161.89
  6. Step 6: Final answer
    x = 18,065.96

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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.