Home / 21,052.49-31,578.89-14,458.69

Finding the Fourth Proportional to 21,052.49, 31,578.89 and 14,458.69

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Solution

The fourth proportional to 21,052.49, 31,578.89 and 14,458.69 is: 21,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.49 : 31,578.89 = 14,458.69 : x
  2. Step 2: Convert to fraction form
    21,052.49/31,578.89 = 14,458.69/x
  3. Step 3: Cross multiply
    21,052.49x = 31,578.89 × 14,458.69
  4. Step 4: Simplify right side
    21,052.49x = 456,589,229.81
  5. Step 5: Solve for x
    x = 456,589,229.81/21,052.49
  6. Step 6: Final answer
    x = 21,688.13

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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.