Home / 19,929.28-29,897.86-5,697.88

Finding the Fourth Proportional to 19,929.28, 29,897.86 and 5,697.88

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Solution

The fourth proportional to 19,929.28, 29,897.86 and 5,697.88 is: 8,547.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.28 : 29,897.86 = 5,697.88 : x
  2. Step 2: Convert to fraction form
    19,929.28/29,897.86 = 5,697.88/x
  3. Step 3: Cross multiply
    19,929.28x = 29,897.86 × 5,697.88
  4. Step 4: Simplify right side
    19,929.28x = 170,354,418.54
  5. Step 5: Solve for x
    x = 170,354,418.54/19,929.28
  6. Step 6: Final answer
    x = 8,547.95

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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.