Home / 19,983.07-29,959.08-12,948.22

Finding the Fourth Proportional to 19,983.07, 29,959.08 and 12,948.22

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Solution

The fourth proportional to 19,983.07, 29,959.08 and 12,948.22 is: 19,412.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.07 : 29,959.08 = 12,948.22 : x
  2. Step 2: Convert to fraction form
    19,983.07/29,959.08 = 12,948.22/x
  3. Step 3: Cross multiply
    19,983.07x = 29,959.08 × 12,948.22
  4. Step 4: Simplify right side
    19,983.07x = 387,916,758.84
  5. Step 5: Solve for x
    x = 387,916,758.84/19,983.07
  6. Step 6: Final answer
    x = 19,412.27

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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.