Home / 28,165.02-42,232.05-9,435.21

Finding the Fourth Proportional to 28,165.02, 42,232.05 and 9,435.21

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Solution

The fourth proportional to 28,165.02, 42,232.05 and 9,435.21 is: 14,147.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.02 : 42,232.05 = 9,435.21 : x
  2. Step 2: Convert to fraction form
    28,165.02/42,232.05 = 9,435.21/x
  3. Step 3: Cross multiply
    28,165.02x = 42,232.05 × 9,435.21
  4. Step 4: Simplify right side
    28,165.02x = 398,468,260.48
  5. Step 5: Solve for x
    x = 398,468,260.48/28,165.02
  6. Step 6: Final answer
    x = 14,147.63

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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.