Home / 23,189.51-31,996.13-15,649.83

Finding the Fourth Proportional to 23,189.51, 31,996.13 and 15,649.83

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Solution

The fourth proportional to 23,189.51, 31,996.13 and 15,649.83 is: 21,593.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,189.51 : 31,996.13 = 15,649.83 : x
  2. Step 2: Convert to fraction form
    23,189.51/31,996.13 = 15,649.83/x
  3. Step 3: Cross multiply
    23,189.51x = 31,996.13 × 15,649.83
  4. Step 4: Simplify right side
    23,189.51x = 500,733,916.91
  5. Step 5: Solve for x
    x = 500,733,916.91/23,189.51
  6. Step 6: Final answer
    x = 21,593.13

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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.