Home / 21,284.51-31,946.47-10,761.96

Finding the Fourth Proportional to 21,284.51, 31,946.47 and 10,761.96

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Solution

The fourth proportional to 21,284.51, 31,946.47 and 10,761.96 is: 16,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284.51 : 31,946.47 = 10,761.96 : x
  2. Step 2: Convert to fraction form
    21,284.51/31,946.47 = 10,761.96/x
  3. Step 3: Cross multiply
    21,284.51x = 31,946.47 × 10,761.96
  4. Step 4: Simplify right side
    21,284.51x = 343,806,725.18
  5. Step 5: Solve for x
    x = 343,806,725.18/21,284.51
  6. Step 6: Final answer
    x = 16,152.91

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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.