Home / 20,833.65-28,763.84-18,591.66

Finding the Fourth Proportional to 20,833.65, 28,763.84 and 18,591.66

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Solution

The fourth proportional to 20,833.65, 28,763.84 and 18,591.66 is: 25,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.65 : 28,763.84 = 18,591.66 : x
  2. Step 2: Convert to fraction form
    20,833.65/28,763.84 = 18,591.66/x
  3. Step 3: Cross multiply
    20,833.65x = 28,763.84 × 18,591.66
  4. Step 4: Simplify right side
    20,833.65x = 534,767,533.57
  5. Step 5: Solve for x
    x = 534,767,533.57/20,833.65
  6. Step 6: Final answer
    x = 25,668.45

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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.