Home / 20,560.08-30,836.07-9,880.23

Finding the Fourth Proportional to 20,560.08, 30,836.07 and 9,880.23

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Solution

The fourth proportional to 20,560.08, 30,836.07 and 9,880.23 is: 14,818.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.08 : 30,836.07 = 9,880.23 : x
  2. Step 2: Convert to fraction form
    20,560.08/30,836.07 = 9,880.23/x
  3. Step 3: Cross multiply
    20,560.08x = 30,836.07 × 9,880.23
  4. Step 4: Simplify right side
    20,560.08x = 304,667,463.90
  5. Step 5: Solve for x
    x = 304,667,463.90/20,560.08
  6. Step 6: Final answer
    x = 14,818.40

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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.