Home / 21,010.81-31,526.04-10,481.64

Finding the Fourth Proportional to 21,010.81, 31,526.04 and 10,481.64

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Solution

The fourth proportional to 21,010.81, 31,526.04 and 10,481.64 is: 15,727.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010.81 : 31,526.04 = 10,481.64 : x
  2. Step 2: Convert to fraction form
    21,010.81/31,526.04 = 10,481.64/x
  3. Step 3: Cross multiply
    21,010.81x = 31,526.04 × 10,481.64
  4. Step 4: Simplify right side
    21,010.81x = 330,444,601.91
  5. Step 5: Solve for x
    x = 330,444,601.91/21,010.81
  6. Step 6: Final answer
    x = 15,727.36

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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.