Home / 20,307.06-30,465.39-6,456.06

Finding the Fourth Proportional to 20,307.06, 30,465.39 and 6,456.06

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Solution

The fourth proportional to 20,307.06, 30,465.39 and 6,456.06 is: 9,685.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307.06 : 30,465.39 = 6,456.06 : x
  2. Step 2: Convert to fraction form
    20,307.06/30,465.39 = 6,456.06/x
  3. Step 3: Cross multiply
    20,307.06x = 30,465.39 × 6,456.06
  4. Step 4: Simplify right side
    20,307.06x = 196,686,385.76
  5. Step 5: Solve for x
    x = 196,686,385.76/20,307.06
  6. Step 6: Final answer
    x = 9,685.62

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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.