Home / 20,397.51-30,590.39-5,606.91

Finding the Fourth Proportional to 20,397.51, 30,590.39 and 5,606.91

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Solution

The fourth proportional to 20,397.51, 30,590.39 and 5,606.91 is: 8,408.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,397.51 : 30,590.39 = 5,606.91 : x
  2. Step 2: Convert to fraction form
    20,397.51/30,590.39 = 5,606.91/x
  3. Step 3: Cross multiply
    20,397.51x = 30,590.39 × 5,606.91
  4. Step 4: Simplify right side
    20,397.51x = 171,517,535.56
  5. Step 5: Solve for x
    x = 171,517,535.56/20,397.51
  6. Step 6: Final answer
    x = 8,408.75

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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.