Home / 20,897.33-31,316.53-11,541.56

Finding the Fourth Proportional to 20,897.33, 31,316.53 and 11,541.56

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Solution

The fourth proportional to 20,897.33, 31,316.53 and 11,541.56 is: 17,296.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,897.33 : 31,316.53 = 11,541.56 : x
  2. Step 2: Convert to fraction form
    20,897.33/31,316.53 = 11,541.56/x
  3. Step 3: Cross multiply
    20,897.33x = 31,316.53 × 11,541.56
  4. Step 4: Simplify right side
    20,897.33x = 361,441,609.99
  5. Step 5: Solve for x
    x = 361,441,609.99/20,897.33
  6. Step 6: Final answer
    x = 17,296.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.