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Finding the Fourth Proportional to 28,549.52, 42,813.64 and 9,824.32

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Solution

The fourth proportional to 28,549.52, 42,813.64 and 9,824.32 is: 14,732.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,549.52 : 42,813.64 = 9,824.32 : x
  2. Step 2: Convert to fraction form
    28,549.52/42,813.64 = 9,824.32/x
  3. Step 3: Cross multiply
    28,549.52x = 42,813.64 × 9,824.32
  4. Step 4: Simplify right side
    28,549.52x = 420,614,899.72
  5. Step 5: Solve for x
    x = 420,614,899.72/28,549.52
  6. Step 6: Final answer
    x = 14,732.82

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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.