Home / 19,085.13-28,644.21-13,245.84

Finding the Fourth Proportional to 19,085.13, 28,644.21 and 13,245.84

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Solution

The fourth proportional to 19,085.13, 28,644.21 and 13,245.84 is: 19,880.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,085.13 : 28,644.21 = 13,245.84 : x
  2. Step 2: Convert to fraction form
    19,085.13/28,644.21 = 13,245.84/x
  3. Step 3: Cross multiply
    19,085.13x = 28,644.21 × 13,245.84
  4. Step 4: Simplify right side
    19,085.13x = 379,416,622.59
  5. Step 5: Solve for x
    x = 379,416,622.59/19,085.13
  6. Step 6: Final answer
    x = 19,880.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.