Home / 47,727.81-71,586.18-12,670.20

Finding the Fourth Proportional to 47,727.81, 71,586.18 and 12,670.20

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Solution

The fourth proportional to 47,727.81, 71,586.18 and 12,670.20 is: 19,003.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,727.81 : 71,586.18 = 12,670.20 : x
  2. Step 2: Convert to fraction form
    47,727.81/71,586.18 = 12,670.20/x
  3. Step 3: Cross multiply
    47,727.81x = 71,586.18 × 12,670.20
  4. Step 4: Simplify right side
    47,727.81x = 907,011,217.84
  5. Step 5: Solve for x
    x = 907,011,217.84/47,727.81
  6. Step 6: Final answer
    x = 19,003.83

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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.