Home / 23,112.99-31,896-12,502.71

Finding the Fourth Proportional to 23,112.99, 31,896 and 12,502.71

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Solution

The fourth proportional to 23,112.99, 31,896 and 12,502.71 is: 17,253.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,112.99 : 31,896 = 12,502.71 : x
  2. Step 2: Convert to fraction form
    23,112.99/31,896 = 12,502.71/x
  3. Step 3: Cross multiply
    23,112.99x = 31,896 × 12,502.71
  4. Step 4: Simplify right side
    23,112.99x = 398,786,438.16
  5. Step 5: Solve for x
    x = 398,786,438.16/23,112.99
  6. Step 6: Final answer
    x = 17,253.78

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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.