Home / 20,653.10-30,957.99-10,108.58

Finding the Fourth Proportional to 20,653.10, 30,957.99 and 10,108.58

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Solution

The fourth proportional to 20,653.10, 30,957.99 and 10,108.58 is: 15,152.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653.10 : 30,957.99 = 10,108.58 : x
  2. Step 2: Convert to fraction form
    20,653.10/30,957.99 = 10,108.58/x
  3. Step 3: Cross multiply
    20,653.10x = 30,957.99 × 10,108.58
  4. Step 4: Simplify right side
    20,653.10x = 312,941,318.55
  5. Step 5: Solve for x
    x = 312,941,318.55/20,653.10
  6. Step 6: Final answer
    x = 15,152.27

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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.