Home / 20,960.06-28,925.43-11,528.87

Finding the Fourth Proportional to 20,960.06, 28,925.43 and 11,528.87

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Solution

The fourth proportional to 20,960.06, 28,925.43 and 11,528.87 is: 15,910.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.06 : 28,925.43 = 11,528.87 : x
  2. Step 2: Convert to fraction form
    20,960.06/28,925.43 = 11,528.87/x
  3. Step 3: Cross multiply
    20,960.06x = 28,925.43 × 11,528.87
  4. Step 4: Simplify right side
    20,960.06x = 333,477,522.16
  5. Step 5: Solve for x
    x = 333,477,522.16/20,960.06
  6. Step 6: Final answer
    x = 15,910.14

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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.