Home / 28,116.80-42,175.20-25,395.20

Finding the Fourth Proportional to 28,116.80, 42,175.20 and 25,395.20

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Solution

The fourth proportional to 28,116.80, 42,175.20 and 25,395.20 is: 38,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.80 : 42,175.20 = 25,395.20 : x
  2. Step 2: Convert to fraction form
    28,116.80/42,175.20 = 25,395.20/x
  3. Step 3: Cross multiply
    28,116.80x = 42,175.20 × 25,395.20
  4. Step 4: Simplify right side
    28,116.80x = 1,071,047,639.04
  5. Step 5: Solve for x
    x = 1,071,047,639.04/28,116.80
  6. Step 6: Final answer
    x = 38,092.80

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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.