Home / 19,319.60-28,963.20-10,085.60

Finding the Fourth Proportional to 19,319.60, 28,963.20 and 10,085.60

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Solution

The fourth proportional to 19,319.60, 28,963.20 and 10,085.60 is: 15,119.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.60 : 28,963.20 = 10,085.60 : x
  2. Step 2: Convert to fraction form
    19,319.60/28,963.20 = 10,085.60/x
  3. Step 3: Cross multiply
    19,319.60x = 28,963.20 × 10,085.60
  4. Step 4: Simplify right side
    19,319.60x = 292,111,249.92
  5. Step 5: Solve for x
    x = 292,111,249.92/19,319.60
  6. Step 6: Final answer
    x = 15,119.94

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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.