Home / 20,417.96-30,626.33-5,627.76

Finding the Fourth Proportional to 20,417.96, 30,626.33 and 5,627.76

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Solution

The fourth proportional to 20,417.96, 30,626.33 and 5,627.76 is: 8,441.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.96 : 30,626.33 = 5,627.76 : x
  2. Step 2: Convert to fraction form
    20,417.96/30,626.33 = 5,627.76/x
  3. Step 3: Cross multiply
    20,417.96x = 30,626.33 × 5,627.76
  4. Step 4: Simplify right side
    20,417.96x = 172,357,606.78
  5. Step 5: Solve for x
    x = 172,357,606.78/20,417.96
  6. Step 6: Final answer
    x = 8,441.47

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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.