Home / 20,285.61-27,994.10-11,333.13

Finding the Fourth Proportional to 20,285.61, 27,994.10 and 11,333.13

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Solution

The fourth proportional to 20,285.61, 27,994.10 and 11,333.13 is: 15,639.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,285.61 : 27,994.10 = 11,333.13 : x
  2. Step 2: Convert to fraction form
    20,285.61/27,994.10 = 11,333.13/x
  3. Step 3: Cross multiply
    20,285.61x = 27,994.10 × 11,333.13
  4. Step 4: Simplify right side
    20,285.61x = 317,260,717.87
  5. Step 5: Solve for x
    x = 317,260,717.87/20,285.61
  6. Step 6: Final answer
    x = 15,639.69

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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.