Home / 30,320.12-41,838.52-16,888.78

Finding the Fourth Proportional to 30,320.12, 41,838.52 and 16,888.78

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Solution

The fourth proportional to 30,320.12, 41,838.52 and 16,888.78 is: 23,304.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,320.12 : 41,838.52 = 16,888.78 : x
  2. Step 2: Convert to fraction form
    30,320.12/41,838.52 = 16,888.78/x
  3. Step 3: Cross multiply
    30,320.12x = 41,838.52 × 16,888.78
  4. Step 4: Simplify right side
    30,320.12x = 706,601,559.81
  5. Step 5: Solve for x
    x = 706,601,559.81/30,320.12
  6. Step 6: Final answer
    x = 23,304.71

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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.