Home / 28,122.16-42,168.86-9,395.44

Finding the Fourth Proportional to 28,122.16, 42,168.86 and 9,395.44

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Solution

The fourth proportional to 28,122.16, 42,168.86 and 9,395.44 is: 14,088.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.16 : 42,168.86 = 9,395.44 : x
  2. Step 2: Convert to fraction form
    28,122.16/42,168.86 = 9,395.44/x
  3. Step 3: Cross multiply
    28,122.16x = 42,168.86 × 9,395.44
  4. Step 4: Simplify right side
    28,122.16x = 396,194,994.00
  5. Step 5: Solve for x
    x = 396,194,994.00/28,122.16
  6. Step 6: Final answer
    x = 14,088.36

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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.