Home / 19,577.76-29,316.12-12,983.28

Finding the Fourth Proportional to 19,577.76, 29,316.12 and 12,983.28

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Solution

The fourth proportional to 19,577.76, 29,316.12 and 12,983.28 is: 19,441.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,577.76 : 29,316.12 = 12,983.28 : x
  2. Step 2: Convert to fraction form
    19,577.76/29,316.12 = 12,983.28/x
  3. Step 3: Cross multiply
    19,577.76x = 29,316.12 × 12,983.28
  4. Step 4: Simplify right side
    19,577.76x = 380,619,394.47
  5. Step 5: Solve for x
    x = 380,619,394.47/19,577.76
  6. Step 6: Final answer
    x = 19,441.42

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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.