Home / 20,651.49-28,469.16-15,266.07

Finding the Fourth Proportional to 20,651.49, 28,469.16 and 15,266.07

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Solution

The fourth proportional to 20,651.49, 28,469.16 and 15,266.07 is: 21,045.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,651.49 : 28,469.16 = 15,266.07 : x
  2. Step 2: Convert to fraction form
    20,651.49/28,469.16 = 15,266.07/x
  3. Step 3: Cross multiply
    20,651.49x = 28,469.16 × 15,266.07
  4. Step 4: Simplify right side
    20,651.49x = 434,612,189.40
  5. Step 5: Solve for x
    x = 434,612,189.40/20,651.49
  6. Step 6: Final answer
    x = 21,045.08

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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.