Home / 19,821.85-27,355.42-13,095.68

Finding the Fourth Proportional to 19,821.85, 27,355.42 and 13,095.68

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Solution

The fourth proportional to 19,821.85, 27,355.42 and 13,095.68 is: 18,072.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821.85 : 27,355.42 = 13,095.68 : x
  2. Step 2: Convert to fraction form
    19,821.85/27,355.42 = 13,095.68/x
  3. Step 3: Cross multiply
    19,821.85x = 27,355.42 × 13,095.68
  4. Step 4: Simplify right side
    19,821.85x = 358,237,725.46
  5. Step 5: Solve for x
    x = 358,237,725.46/19,821.85
  6. Step 6: Final answer
    x = 18,072.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.