Home / 19,210.50-28,815.78-4,618.50

Finding the Fourth Proportional to 19,210.50, 28,815.78 and 4,618.50

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Solution

The fourth proportional to 19,210.50, 28,815.78 and 4,618.50 is: 6,927.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.50 : 28,815.78 = 4,618.50 : x
  2. Step 2: Convert to fraction form
    19,210.50/28,815.78 = 4,618.50/x
  3. Step 3: Cross multiply
    19,210.50x = 28,815.78 × 4,618.50
  4. Step 4: Simplify right side
    19,210.50x = 133,085,679.93
  5. Step 5: Solve for x
    x = 133,085,679.93/19,210.50
  6. Step 6: Final answer
    x = 6,927.76

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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.