Home / 28,772.10-43,154.64-7,713.72

Finding the Fourth Proportional to 28,772.10, 43,154.64 and 7,713.72

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Solution

The fourth proportional to 28,772.10, 43,154.64 and 7,713.72 is: 11,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772.10 : 43,154.64 = 7,713.72 : x
  2. Step 2: Convert to fraction form
    28,772.10/43,154.64 = 7,713.72/x
  3. Step 3: Cross multiply
    28,772.10x = 43,154.64 × 7,713.72
  4. Step 4: Simplify right side
    28,772.10x = 332,882,809.66
  5. Step 5: Solve for x
    x = 332,882,809.66/28,772.10
  6. Step 6: Final answer
    x = 11,569.64

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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.