Home / 19,929.88-27,503.22-10,977.16

Finding the Fourth Proportional to 19,929.88, 27,503.22 and 10,977.16

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Solution

The fourth proportional to 19,929.88, 27,503.22 and 10,977.16 is: 15,148.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.88 : 27,503.22 = 10,977.16 : x
  2. Step 2: Convert to fraction form
    19,929.88/27,503.22 = 10,977.16/x
  3. Step 3: Cross multiply
    19,929.88x = 27,503.22 × 10,977.16
  4. Step 4: Simplify right side
    19,929.88x = 301,907,246.46
  5. Step 5: Solve for x
    x = 301,907,246.46/19,929.88
  6. Step 6: Final answer
    x = 15,148.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.