Home / 20,390.40-30,584.43-5,598.27

Finding the Fourth Proportional to 20,390.40, 30,584.43 and 5,598.27

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Solution

The fourth proportional to 20,390.40, 30,584.43 and 5,598.27 is: 8,397.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390.40 : 30,584.43 = 5,598.27 : x
  2. Step 2: Convert to fraction form
    20,390.40/30,584.43 = 5,598.27/x
  3. Step 3: Cross multiply
    20,390.40x = 30,584.43 × 5,598.27
  4. Step 4: Simplify right side
    20,390.40x = 171,219,896.94
  5. Step 5: Solve for x
    x = 171,219,896.94/20,390.40
  6. Step 6: Final answer
    x = 8,397.08

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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.