Home / 20,336.47-30,513.67-7,011.49

Finding the Fourth Proportional to 20,336.47, 30,513.67 and 7,011.49

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Solution

The fourth proportional to 20,336.47, 30,513.67 and 7,011.49 is: 10,520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.47 : 30,513.67 = 7,011.49 : x
  2. Step 2: Convert to fraction form
    20,336.47/30,513.67 = 7,011.49/x
  3. Step 3: Cross multiply
    20,336.47x = 30,513.67 × 7,011.49
  4. Step 4: Simplify right side
    20,336.47x = 213,946,218.95
  5. Step 5: Solve for x
    x = 213,946,218.95/20,336.47
  6. Step 6: Final answer
    x = 10,520.32

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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.