Home / 30,197.50-45,286.90-10,471.47

Finding the Fourth Proportional to 30,197.50, 45,286.90 and 10,471.47

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Solution

The fourth proportional to 30,197.50, 45,286.90 and 10,471.47 is: 15,703.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,197.50 : 45,286.90 = 10,471.47 : x
  2. Step 2: Convert to fraction form
    30,197.50/45,286.90 = 10,471.47/x
  3. Step 3: Cross multiply
    30,197.50x = 45,286.90 × 10,471.47
  4. Step 4: Simplify right side
    30,197.50x = 474,220,218.74
  5. Step 5: Solve for x
    x = 474,220,218.74/30,197.50
  6. Step 6: Final answer
    x = 15,703.96

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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.