Home / 21,260.79-31,842.59-10,175.27

Finding the Fourth Proportional to 21,260.79, 31,842.59 and 10,175.27

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Solution

The fourth proportional to 21,260.79, 31,842.59 and 10,175.27 is: 15,239.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.79 : 31,842.59 = 10,175.27 : x
  2. Step 2: Convert to fraction form
    21,260.79/31,842.59 = 10,175.27/x
  3. Step 3: Cross multiply
    21,260.79x = 31,842.59 × 10,175.27
  4. Step 4: Simplify right side
    21,260.79x = 324,006,740.66
  5. Step 5: Solve for x
    x = 324,006,740.66/21,260.79
  6. Step 6: Final answer
    x = 15,239.64

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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.