Home / 20,397.69-30,597.68-5,606.28

Finding the Fourth Proportional to 20,397.69, 30,597.68 and 5,606.28

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Solution

The fourth proportional to 20,397.69, 30,597.68 and 5,606.28 is: 8,409.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,397.69 : 30,597.68 = 5,606.28 : x
  2. Step 2: Convert to fraction form
    20,397.69/30,597.68 = 5,606.28/x
  3. Step 3: Cross multiply
    20,397.69x = 30,597.68 × 5,606.28
  4. Step 4: Simplify right side
    20,397.69x = 171,539,175.45
  5. Step 5: Solve for x
    x = 171,539,175.45/20,397.69
  6. Step 6: Final answer
    x = 8,409.74

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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.