Home / 22,457.96-30,993.40-12,900.84

Finding the Fourth Proportional to 22,457.96, 30,993.40 and 12,900.84

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Solution

The fourth proportional to 22,457.96, 30,993.40 and 12,900.84 is: 17,803.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,457.96 : 30,993.40 = 12,900.84 : x
  2. Step 2: Convert to fraction form
    22,457.96/30,993.40 = 12,900.84/x
  3. Step 3: Cross multiply
    22,457.96x = 30,993.40 × 12,900.84
  4. Step 4: Simplify right side
    22,457.96x = 399,840,739.49
  5. Step 5: Solve for x
    x = 399,840,739.49/22,457.96
  6. Step 6: Final answer
    x = 17,803.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.