Home / 47,192.28-70,739.20-19,131.70

Finding the Fourth Proportional to 47,192.28, 70,739.20 and 19,131.70

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Solution

The fourth proportional to 47,192.28, 70,739.20 and 19,131.70 is: 28,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,192.28 : 70,739.20 = 19,131.70 : x
  2. Step 2: Convert to fraction form
    47,192.28/70,739.20 = 19,131.70/x
  3. Step 3: Cross multiply
    47,192.28x = 70,739.20 × 19,131.70
  4. Step 4: Simplify right side
    47,192.28x = 1,353,361,152.64
  5. Step 5: Solve for x
    x = 1,353,361,152.64/47,192.28
  6. Step 6: Final answer
    x = 28,677.60

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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.