Home / 20,303.74-30,454.92-7,155.76

Finding the Fourth Proportional to 20,303.74, 30,454.92 and 7,155.76

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Solution

The fourth proportional to 20,303.74, 30,454.92 and 7,155.76 is: 10,733.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.74 : 30,454.92 = 7,155.76 : x
  2. Step 2: Convert to fraction form
    20,303.74/30,454.92 = 7,155.76/x
  3. Step 3: Cross multiply
    20,303.74x = 30,454.92 × 7,155.76
  4. Step 4: Simplify right side
    20,303.74x = 217,928,098.34
  5. Step 5: Solve for x
    x = 217,928,098.34/20,303.74
  6. Step 6: Final answer
    x = 10,733.40

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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.