Home / 19,900.65-29,826.36-10,042.74

Finding the Fourth Proportional to 19,900.65, 29,826.36 and 10,042.74

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Solution

The fourth proportional to 19,900.65, 29,826.36 and 10,042.74 is: 15,051.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.65 : 29,826.36 = 10,042.74 : x
  2. Step 2: Convert to fraction form
    19,900.65/29,826.36 = 10,042.74/x
  3. Step 3: Cross multiply
    19,900.65x = 29,826.36 × 10,042.74
  4. Step 4: Simplify right side
    19,900.65x = 299,538,478.30
  5. Step 5: Solve for x
    x = 299,538,478.30/19,900.65
  6. Step 6: Final answer
    x = 15,051.70

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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.