Home / 28,816.64-43,231.08-9,100.88

Finding the Fourth Proportional to 28,816.64, 43,231.08 and 9,100.88

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Solution

The fourth proportional to 28,816.64, 43,231.08 and 9,100.88 is: 13,653.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,816.64 : 43,231.08 = 9,100.88 : x
  2. Step 2: Convert to fraction form
    28,816.64/43,231.08 = 9,100.88/x
  3. Step 3: Cross multiply
    28,816.64x = 43,231.08 × 9,100.88
  4. Step 4: Simplify right side
    28,816.64x = 393,440,871.35
  5. Step 5: Solve for x
    x = 393,440,871.35/28,816.64
  6. Step 6: Final answer
    x = 13,653.25

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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.