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Finding the Fourth Proportional to 28,043.52, 42,058.80 and 8,317.32

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Solution

The fourth proportional to 28,043.52, 42,058.80 and 8,317.32 is: 12,474.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.52 : 42,058.80 = 8,317.32 : x
  2. Step 2: Convert to fraction form
    28,043.52/42,058.80 = 8,317.32/x
  3. Step 3: Cross multiply
    28,043.52x = 42,058.80 × 8,317.32
  4. Step 4: Simplify right side
    28,043.52x = 349,816,498.42
  5. Step 5: Solve for x
    x = 349,816,498.42/28,043.52
  6. Step 6: Final answer
    x = 12,474.06

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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.