Home / 28,121.02-42,185.61-9,395.49

Finding the Fourth Proportional to 28,121.02, 42,185.61 and 9,395.49

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Solution

The fourth proportional to 28,121.02, 42,185.61 and 9,395.49 is: 14,094.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,121.02 : 42,185.61 = 9,395.49 : x
  2. Step 2: Convert to fraction form
    28,121.02/42,185.61 = 9,395.49/x
  3. Step 3: Cross multiply
    28,121.02x = 42,185.61 × 9,395.49
  4. Step 4: Simplify right side
    28,121.02x = 396,354,635.09
  5. Step 5: Solve for x
    x = 396,354,635.09/28,121.02
  6. Step 6: Final answer
    x = 14,094.60

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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.