Home / 19,612.86-29,419.04-4,821.91

Finding the Fourth Proportional to 19,612.86, 29,419.04 and 4,821.91

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Solution

The fourth proportional to 19,612.86, 29,419.04 and 4,821.91 is: 7,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,612.86 : 29,419.04 = 4,821.91 : x
  2. Step 2: Convert to fraction form
    19,612.86/29,419.04 = 4,821.91/x
  3. Step 3: Cross multiply
    19,612.86x = 29,419.04 × 4,821.91
  4. Step 4: Simplify right side
    19,612.86x = 141,855,865.51
  5. Step 5: Solve for x
    x = 141,855,865.51/19,612.86
  6. Step 6: Final answer
    x = 7,232.80

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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.