Home / 20,925.63-28,870.33-11,849.75

Finding the Fourth Proportional to 20,925.63, 28,870.33 and 11,849.75

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Solution

The fourth proportional to 20,925.63, 28,870.33 and 11,849.75 is: 16,348.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,925.63 : 28,870.33 = 11,849.75 : x
  2. Step 2: Convert to fraction form
    20,925.63/28,870.33 = 11,849.75/x
  3. Step 3: Cross multiply
    20,925.63x = 28,870.33 × 11,849.75
  4. Step 4: Simplify right side
    20,925.63x = 342,106,192.92
  5. Step 5: Solve for x
    x = 342,106,192.92/20,925.63
  6. Step 6: Final answer
    x = 16,348.67

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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.