Home / 28,116.77-42,175.04-8,395.29

Finding the Fourth Proportional to 28,116.77, 42,175.04 and 8,395.29

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Solution

The fourth proportional to 28,116.77, 42,175.04 and 8,395.29 is: 12,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.77 : 42,175.04 = 8,395.29 : x
  2. Step 2: Convert to fraction form
    28,116.77/42,175.04 = 8,395.29/x
  3. Step 3: Cross multiply
    28,116.77x = 42,175.04 × 8,395.29
  4. Step 4: Simplify right side
    28,116.77x = 354,071,649.59
  5. Step 5: Solve for x
    x = 354,071,649.59/28,116.77
  6. Step 6: Final answer
    x = 12,592.90

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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.