Home / 20,172.60-30,242.70-7,024.68

Finding the Fourth Proportional to 20,172.60, 30,242.70 and 7,024.68

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Solution

The fourth proportional to 20,172.60, 30,242.70 and 7,024.68 is: 10,531.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.60 : 30,242.70 = 7,024.68 : x
  2. Step 2: Convert to fraction form
    20,172.60/30,242.70 = 7,024.68/x
  3. Step 3: Cross multiply
    20,172.60x = 30,242.70 × 7,024.68
  4. Step 4: Simplify right side
    20,172.60x = 212,445,289.84
  5. Step 5: Solve for x
    x = 212,445,289.84/20,172.60
  6. Step 6: Final answer
    x = 10,531.38

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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.