Home / 20,460.67-28,237.14-11,509.02

Finding the Fourth Proportional to 20,460.67, 28,237.14 and 11,509.02

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Solution

The fourth proportional to 20,460.67, 28,237.14 and 11,509.02 is: 15,883.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460.67 : 28,237.14 = 11,509.02 : x
  2. Step 2: Convert to fraction form
    20,460.67/28,237.14 = 11,509.02/x
  3. Step 3: Cross multiply
    20,460.67x = 28,237.14 × 11,509.02
  4. Step 4: Simplify right side
    20,460.67x = 324,981,809.00
  5. Step 5: Solve for x
    x = 324,981,809.00/20,460.67
  6. Step 6: Final answer
    x = 15,883.25

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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.