Home / 20,624.36-30,948.75-8,145.63

Finding the Fourth Proportional to 20,624.36, 30,948.75 and 8,145.63

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Solution

The fourth proportional to 20,624.36, 30,948.75 and 8,145.63 is: 12,223.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.36 : 30,948.75 = 8,145.63 : x
  2. Step 2: Convert to fraction form
    20,624.36/30,948.75 = 8,145.63/x
  3. Step 3: Cross multiply
    20,624.36x = 30,948.75 × 8,145.63
  4. Step 4: Simplify right side
    20,624.36x = 252,097,066.46
  5. Step 5: Solve for x
    x = 252,097,066.46/20,624.36
  6. Step 6: Final answer
    x = 12,223.27

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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.