Home / 52,286.40-78,429.86-12,843.52

Finding the Fourth Proportional to 52,286.40, 78,429.86 and 12,843.52

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Solution

The fourth proportional to 52,286.40, 78,429.86 and 12,843.52 is: 19,265.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,286.40 : 78,429.86 = 12,843.52 : x
  2. Step 2: Convert to fraction form
    52,286.40/78,429.86 = 12,843.52/x
  3. Step 3: Cross multiply
    52,286.40x = 78,429.86 × 12,843.52
  4. Step 4: Simplify right side
    52,286.40x = 1,007,315,475.51
  5. Step 5: Solve for x
    x = 1,007,315,475.51/52,286.40
  6. Step 6: Final answer
    x = 19,265.34

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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.