Home / 19,621.52-29,431.62-8,528.20

Finding the Fourth Proportional to 19,621.52, 29,431.62 and 8,528.20

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Solution

The fourth proportional to 19,621.52, 29,431.62 and 8,528.20 is: 12,792.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.52 : 29,431.62 = 8,528.20 : x
  2. Step 2: Convert to fraction form
    19,621.52/29,431.62 = 8,528.20/x
  3. Step 3: Cross multiply
    19,621.52x = 29,431.62 × 8,528.20
  4. Step 4: Simplify right side
    19,621.52x = 250,998,741.68
  5. Step 5: Solve for x
    x = 250,998,741.68/19,621.52
  6. Step 6: Final answer
    x = 12,792.01

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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.