Home / 51,238.36-70,709.22-28,578.84

Finding the Fourth Proportional to 51,238.36, 70,709.22 and 28,578.84

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Solution

The fourth proportional to 51,238.36, 70,709.22 and 28,578.84 is: 39,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,238.36 : 70,709.22 = 28,578.84 : x
  2. Step 2: Convert to fraction form
    51,238.36/70,709.22 = 28,578.84/x
  3. Step 3: Cross multiply
    51,238.36x = 70,709.22 × 28,578.84
  4. Step 4: Simplify right side
    51,238.36x = 2,020,787,484.90
  5. Step 5: Solve for x
    x = 2,020,787,484.90/51,238.36
  6. Step 6: Final answer
    x = 39,438.96

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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.