Home / 28,188.08-42,283.14-9,468.72

Finding the Fourth Proportional to 28,188.08, 42,283.14 and 9,468.72

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Solution

The fourth proportional to 28,188.08, 42,283.14 and 9,468.72 is: 14,203.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188.08 : 42,283.14 = 9,468.72 : x
  2. Step 2: Convert to fraction form
    28,188.08/42,283.14 = 9,468.72/x
  3. Step 3: Cross multiply
    28,188.08x = 42,283.14 × 9,468.72
  4. Step 4: Simplify right side
    28,188.08x = 400,367,323.43
  5. Step 5: Solve for x
    x = 400,367,323.43/28,188.08
  6. Step 6: Final answer
    x = 14,203.43

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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.