Home / 20,974.04-31,465.98-6,934.06

Finding the Fourth Proportional to 20,974.04, 31,465.98 and 6,934.06

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Solution

The fourth proportional to 20,974.04, 31,465.98 and 6,934.06 is: 10,402.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974.04 : 31,465.98 = 6,934.06 : x
  2. Step 2: Convert to fraction form
    20,974.04/31,465.98 = 6,934.06/x
  3. Step 3: Cross multiply
    20,974.04x = 31,465.98 × 6,934.06
  4. Step 4: Simplify right side
    20,974.04x = 218,186,993.28
  5. Step 5: Solve for x
    x = 218,186,993.28/20,974.04
  6. Step 6: Final answer
    x = 10,402.72

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1.5x scale

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.