Home / 19,705.04-27,184.38-12,982.04

Finding the Fourth Proportional to 19,705.04, 27,184.38 and 12,982.04

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Solution

The fourth proportional to 19,705.04, 27,184.38 and 12,982.04 is: 17,909.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,705.04 : 27,184.38 = 12,982.04 : x
  2. Step 2: Convert to fraction form
    19,705.04/27,184.38 = 12,982.04/x
  3. Step 3: Cross multiply
    19,705.04x = 27,184.38 × 12,982.04
  4. Step 4: Simplify right side
    19,705.04x = 352,908,708.54
  5. Step 5: Solve for x
    x = 352,908,708.54/19,705.04
  6. Step 6: Final answer
    x = 17,909.57

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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.