Home / 23,143.16-31,937.66-13,071.72

Finding the Fourth Proportional to 23,143.16, 31,937.66 and 13,071.72

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Solution

The fourth proportional to 23,143.16, 31,937.66 and 13,071.72 is: 18,039.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,143.16 : 31,937.66 = 13,071.72 : x
  2. Step 2: Convert to fraction form
    23,143.16/31,937.66 = 13,071.72/x
  3. Step 3: Cross multiply
    23,143.16x = 31,937.66 × 13,071.72
  4. Step 4: Simplify right side
    23,143.16x = 417,479,923.93
  5. Step 5: Solve for x
    x = 417,479,923.93/23,143.16
  6. Step 6: Final answer
    x = 18,039.02

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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.