Home / 19,810.17-29,721.87-6,483.78

Finding the Fourth Proportional to 19,810.17, 29,721.87 and 6,483.78

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Solution

The fourth proportional to 19,810.17, 29,721.87 and 6,483.78 is: 9,727.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,810.17 : 29,721.87 = 6,483.78 : x
  2. Step 2: Convert to fraction form
    19,810.17/29,721.87 = 6,483.78/x
  3. Step 3: Cross multiply
    19,810.17x = 29,721.87 × 6,483.78
  4. Step 4: Simplify right side
    19,810.17x = 192,710,066.27
  5. Step 5: Solve for x
    x = 192,710,066.27/19,810.17
  6. Step 6: Final answer
    x = 9,727.84

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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.