Home / 20,398.77-30,528.29-14,165.82

Finding the Fourth Proportional to 20,398.77, 30,528.29 and 14,165.82

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Solution

The fourth proportional to 20,398.77, 30,528.29 and 14,165.82 is: 21,200.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,398.77 : 30,528.29 = 14,165.82 : x
  2. Step 2: Convert to fraction form
    20,398.77/30,528.29 = 14,165.82/x
  3. Step 3: Cross multiply
    20,398.77x = 30,528.29 × 14,165.82
  4. Step 4: Simplify right side
    20,398.77x = 432,458,296.46
  5. Step 5: Solve for x
    x = 432,458,296.46/20,398.77
  6. Step 6: Final answer
    x = 21,200.21

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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.