Home / 20,962.24-28,928.26-11,402.34

Finding the Fourth Proportional to 20,962.24, 28,928.26 and 11,402.34

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Solution

The fourth proportional to 20,962.24, 28,928.26 and 11,402.34 is: 15,735.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.24 : 28,928.26 = 11,402.34 : x
  2. Step 2: Convert to fraction form
    20,962.24/28,928.26 = 11,402.34/x
  3. Step 3: Cross multiply
    20,962.24x = 28,928.26 × 11,402.34
  4. Step 4: Simplify right side
    20,962.24x = 329,849,711.49
  5. Step 5: Solve for x
    x = 329,849,711.49/20,962.24
  6. Step 6: Final answer
    x = 15,735.43

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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.