Home / 16,910.51-23,343.05-15,139.04

Finding the Fourth Proportional to 16,910.51, 23,343.05 and 15,139.04

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Solution

The fourth proportional to 16,910.51, 23,343.05 and 15,139.04 is: 20,897.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,910.51 : 23,343.05 = 15,139.04 : x
  2. Step 2: Convert to fraction form
    16,910.51/23,343.05 = 15,139.04/x
  3. Step 3: Cross multiply
    16,910.51x = 23,343.05 × 15,139.04
  4. Step 4: Simplify right side
    16,910.51x = 353,391,291.98
  5. Step 5: Solve for x
    x = 353,391,291.98/16,910.51
  6. Step 6: Final answer
    x = 20,897.73

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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.