Home / 19,721.84-29,582.19-5,681.93

Finding the Fourth Proportional to 19,721.84, 29,582.19 and 5,681.93

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Solution

The fourth proportional to 19,721.84, 29,582.19 and 5,681.93 is: 8,522.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.84 : 29,582.19 = 5,681.93 : x
  2. Step 2: Convert to fraction form
    19,721.84/29,582.19 = 5,681.93/x
  3. Step 3: Cross multiply
    19,721.84x = 29,582.19 × 5,681.93
  4. Step 4: Simplify right side
    19,721.84x = 168,083,784.92
  5. Step 5: Solve for x
    x = 168,083,784.92/19,721.84
  6. Step 6: Final answer
    x = 8,522.73

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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.