Home / 20,068.48-30,107.28-6,921.04

Finding the Fourth Proportional to 20,068.48, 30,107.28 and 6,921.04

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Solution

The fourth proportional to 20,068.48, 30,107.28 and 6,921.04 is: 10,383.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.48 : 30,107.28 = 6,921.04 : x
  2. Step 2: Convert to fraction form
    20,068.48/30,107.28 = 6,921.04/x
  3. Step 3: Cross multiply
    20,068.48x = 30,107.28 × 6,921.04
  4. Step 4: Simplify right side
    20,068.48x = 208,373,689.17
  5. Step 5: Solve for x
    x = 208,373,689.17/20,068.48
  6. Step 6: Final answer
    x = 10,383.13

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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.