Home / 22,581.93-31,162.64-13,629.81

Finding the Fourth Proportional to 22,581.93, 31,162.64 and 13,629.81

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Solution

The fourth proportional to 22,581.93, 31,162.64 and 13,629.81 is: 18,808.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,581.93 : 31,162.64 = 13,629.81 : x
  2. Step 2: Convert to fraction form
    22,581.93/31,162.64 = 13,629.81/x
  3. Step 3: Cross multiply
    22,581.93x = 31,162.64 × 13,629.81
  4. Step 4: Simplify right side
    22,581.93x = 424,740,862.30
  5. Step 5: Solve for x
    x = 424,740,862.30/22,581.93
  6. Step 6: Final answer
    x = 18,808.88

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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.