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Finding the Fourth Proportional to 47,223.40, 70,860.70 and 20,932.20

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Solution

The fourth proportional to 47,223.40, 70,860.70 and 20,932.20 is: 31,409.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,223.40 : 70,860.70 = 20,932.20 : x
  2. Step 2: Convert to fraction form
    47,223.40/70,860.70 = 20,932.20/x
  3. Step 3: Cross multiply
    47,223.40x = 70,860.70 × 20,932.20
  4. Step 4: Simplify right side
    47,223.40x = 1,483,270,344.54
  5. Step 5: Solve for x
    x = 1,483,270,344.54/47,223.40
  6. Step 6: Final answer
    x = 31,409.65

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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.