Home / 19,834.86-29,725.26-9,980.91

Finding the Fourth Proportional to 19,834.86, 29,725.26 and 9,980.91

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Solution

The fourth proportional to 19,834.86, 29,725.26 and 9,980.91 is: 14,957.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,834.86 : 29,725.26 = 9,980.91 : x
  2. Step 2: Convert to fraction form
    19,834.86/29,725.26 = 9,980.91/x
  3. Step 3: Cross multiply
    19,834.86x = 29,725.26 × 9,980.91
  4. Step 4: Simplify right side
    19,834.86x = 296,685,144.79
  5. Step 5: Solve for x
    x = 296,685,144.79/19,834.86
  6. Step 6: Final answer
    x = 14,957.76

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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.