Home / 20,030.37-30,042.94-5,240.43

Finding the Fourth Proportional to 20,030.37, 30,042.94 and 5,240.43

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Solution

The fourth proportional to 20,030.37, 30,042.94 and 5,240.43 is: 7,859.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.37 : 30,042.94 = 5,240.43 : x
  2. Step 2: Convert to fraction form
    20,030.37/30,042.94 = 5,240.43/x
  3. Step 3: Cross multiply
    20,030.37x = 30,042.94 × 5,240.43
  4. Step 4: Simplify right side
    20,030.37x = 157,437,924.06
  5. Step 5: Solve for x
    x = 157,437,924.06/20,030.37
  6. Step 6: Final answer
    x = 7,859.96

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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.