Home / 38,949.04-53,770.32-31,208.05

Finding the Fourth Proportional to 38,949.04, 53,770.32 and 31,208.05

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Solution

The fourth proportional to 38,949.04, 53,770.32 and 31,208.05 is: 43,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,949.04 : 53,770.32 = 31,208.05 : x
  2. Step 2: Convert to fraction form
    38,949.04/53,770.32 = 31,208.05/x
  3. Step 3: Cross multiply
    38,949.04x = 53,770.32 × 31,208.05
  4. Step 4: Simplify right side
    38,949.04x = 1,678,066,835.08
  5. Step 5: Solve for x
    x = 1,678,066,835.08/38,949.04
  6. Step 6: Final answer
    x = 43,083.65

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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.