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Finding the Fourth Proportional to 28,843.86, 43,263.74 and 7,785.10

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Solution

The fourth proportional to 28,843.86, 43,263.74 and 7,785.10 is: 11,677.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,843.86 : 43,263.74 = 7,785.10 : x
  2. Step 2: Convert to fraction form
    28,843.86/43,263.74 = 7,785.10/x
  3. Step 3: Cross multiply
    28,843.86x = 43,263.74 × 7,785.10
  4. Step 4: Simplify right side
    28,843.86x = 336,812,472.24
  5. Step 5: Solve for x
    x = 336,812,472.24/28,843.86
  6. Step 6: Final answer
    x = 11,677.10

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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.