Home / 19,920.04-29,855.30-10,053.88

Finding the Fourth Proportional to 19,920.04, 29,855.30 and 10,053.88

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Solution

The fourth proportional to 19,920.04, 29,855.30 and 10,053.88 is: 15,068.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.04 : 29,855.30 = 10,053.88 : x
  2. Step 2: Convert to fraction form
    19,920.04/29,855.30 = 10,053.88/x
  3. Step 3: Cross multiply
    19,920.04x = 29,855.30 × 10,053.88
  4. Step 4: Simplify right side
    19,920.04x = 300,161,603.56
  5. Step 5: Solve for x
    x = 300,161,603.56/19,920.04
  6. Step 6: Final answer
    x = 15,068.32

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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.