Home / 20,390.07-30,585.69-5,599.11

Finding the Fourth Proportional to 20,390.07, 30,585.69 and 5,599.11

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Solution

The fourth proportional to 20,390.07, 30,585.69 and 5,599.11 is: 8,398.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390.07 : 30,585.69 = 5,599.11 : x
  2. Step 2: Convert to fraction form
    20,390.07/30,585.69 = 5,599.11/x
  3. Step 3: Cross multiply
    20,390.07x = 30,585.69 × 5,599.11
  4. Step 4: Simplify right side
    20,390.07x = 171,252,642.74
  5. Step 5: Solve for x
    x = 171,252,642.74/20,390.07
  6. Step 6: Final answer
    x = 8,398.83

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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.