Home / 28,137.24-42,215.49-10,612.08

Finding the Fourth Proportional to 28,137.24, 42,215.49 and 10,612.08

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Solution

The fourth proportional to 28,137.24, 42,215.49 and 10,612.08 is: 15,921.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,137.24 : 42,215.49 = 10,612.08 : x
  2. Step 2: Convert to fraction form
    28,137.24/42,215.49 = 10,612.08/x
  3. Step 3: Cross multiply
    28,137.24x = 42,215.49 × 10,612.08
  4. Step 4: Simplify right side
    28,137.24x = 447,994,157.12
  5. Step 5: Solve for x
    x = 447,994,157.12/28,137.24
  6. Step 6: Final answer
    x = 15,921.75

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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.