Home / 22,795.47-31,457.64-12,723.78

Finding the Fourth Proportional to 22,795.47, 31,457.64 and 12,723.78

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Solution

The fourth proportional to 22,795.47, 31,457.64 and 12,723.78 is: 17,558.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,795.47 : 31,457.64 = 12,723.78 : x
  2. Step 2: Convert to fraction form
    22,795.47/31,457.64 = 12,723.78/x
  3. Step 3: Cross multiply
    22,795.47x = 31,457.64 × 12,723.78
  4. Step 4: Simplify right side
    22,795.47x = 400,260,090.68
  5. Step 5: Solve for x
    x = 400,260,090.68/22,795.47
  6. Step 6: Final answer
    x = 17,558.76

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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.