Home / 30,392-41,942.60-17,820.80

Finding the Fourth Proportional to 30,392, 41,942.60 and 17,820.80

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Solution

The fourth proportional to 30,392, 41,942.60 and 17,820.80 is: 24,593.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,392 : 41,942.60 = 17,820.80 : x
  2. Step 2: Convert to fraction form
    30,392/41,942.60 = 17,820.80/x
  3. Step 3: Cross multiply
    30,392x = 41,942.60 × 17,820.80
  4. Step 4: Simplify right side
    30,392x = 747,450,686.08
  5. Step 5: Solve for x
    x = 747,450,686.08/30,392
  6. Step 6: Final answer
    x = 24,593.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.