Home / 22,200.08-30,637.02-12,768.64

Finding the Fourth Proportional to 22,200.08, 30,637.02 and 12,768.64

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Solution

The fourth proportional to 22,200.08, 30,637.02 and 12,768.64 is: 17,621.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,200.08 : 30,637.02 = 12,768.64 : x
  2. Step 2: Convert to fraction form
    22,200.08/30,637.02 = 12,768.64/x
  3. Step 3: Cross multiply
    22,200.08x = 30,637.02 × 12,768.64
  4. Step 4: Simplify right side
    22,200.08x = 391,193,079.05
  5. Step 5: Solve for x
    x = 391,193,079.05/22,200.08
  6. Step 6: Final answer
    x = 17,621.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.