Home / 19,920.80-29,866.56-12,026.14

Finding the Fourth Proportional to 19,920.80, 29,866.56 and 12,026.14

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Solution

The fourth proportional to 19,920.80, 29,866.56 and 12,026.14 is: 18,030.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.80 : 29,866.56 = 12,026.14 : x
  2. Step 2: Convert to fraction form
    19,920.80/29,866.56 = 12,026.14/x
  3. Step 3: Cross multiply
    19,920.80x = 29,866.56 × 12,026.14
  4. Step 4: Simplify right side
    19,920.80x = 359,179,312.11
  5. Step 5: Solve for x
    x = 359,179,312.11/19,920.80
  6. Step 6: Final answer
    x = 18,030.36

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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.