Home / 20,318.04-27,976.59-17,785.98

Finding the Fourth Proportional to 20,318.04, 27,976.59 and 17,785.98

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Solution

The fourth proportional to 20,318.04, 27,976.59 and 17,785.98 is: 24,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.04 : 27,976.59 = 17,785.98 : x
  2. Step 2: Convert to fraction form
    20,318.04/27,976.59 = 17,785.98/x
  3. Step 3: Cross multiply
    20,318.04x = 27,976.59 × 17,785.98
  4. Step 4: Simplify right side
    20,318.04x = 497,591,070.21
  5. Step 5: Solve for x
    x = 497,591,070.21/20,318.04
  6. Step 6: Final answer
    x = 24,490.11

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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.