Home / 20,960.58-28,925.48-11,528.94

Finding the Fourth Proportional to 20,960.58, 28,925.48 and 11,528.94

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Solution

The fourth proportional to 20,960.58, 28,925.48 and 11,528.94 is: 15,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.58 : 28,925.48 = 11,528.94 : x
  2. Step 2: Convert to fraction form
    20,960.58/28,925.48 = 11,528.94/x
  3. Step 3: Cross multiply
    20,960.58x = 28,925.48 × 11,528.94
  4. Step 4: Simplify right side
    20,960.58x = 333,480,123.39
  5. Step 5: Solve for x
    x = 333,480,123.39/20,960.58
  6. Step 6: Final answer
    x = 15,909.87

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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.