Home / 28,861.64-43,291.10-9,141.32

Finding the Fourth Proportional to 28,861.64, 43,291.10 and 9,141.32

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Solution

The fourth proportional to 28,861.64, 43,291.10 and 9,141.32 is: 13,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,861.64 : 43,291.10 = 9,141.32 : x
  2. Step 2: Convert to fraction form
    28,861.64/43,291.10 = 9,141.32/x
  3. Step 3: Cross multiply
    28,861.64x = 43,291.10 × 9,141.32
  4. Step 4: Simplify right side
    28,861.64x = 395,737,798.25
  5. Step 5: Solve for x
    x = 395,737,798.25/28,861.64
  6. Step 6: Final answer
    x = 13,711.55

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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.