Home / 23,101.09-31,887.69-13,669.63

Finding the Fourth Proportional to 23,101.09, 31,887.69 and 13,669.63

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Solution

The fourth proportional to 23,101.09, 31,887.69 and 13,669.63 is: 18,868.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,101.09 : 31,887.69 = 13,669.63 : x
  2. Step 2: Convert to fraction form
    23,101.09/31,887.69 = 13,669.63/x
  3. Step 3: Cross multiply
    23,101.09x = 31,887.69 × 13,669.63
  4. Step 4: Simplify right side
    23,101.09x = 435,892,923.85
  5. Step 5: Solve for x
    x = 435,892,923.85/23,101.09
  6. Step 6: Final answer
    x = 18,868.93

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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.