Home / 28,144.95-38,840.99-16,047.19

Finding the Fourth Proportional to 28,144.95, 38,840.99 and 16,047.19

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Solution

The fourth proportional to 28,144.95, 38,840.99 and 16,047.19 is: 22,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,144.95 : 38,840.99 = 16,047.19 : x
  2. Step 2: Convert to fraction form
    28,144.95/38,840.99 = 16,047.19/x
  3. Step 3: Cross multiply
    28,144.95x = 38,840.99 × 16,047.19
  4. Step 4: Simplify right side
    28,144.95x = 623,288,714.63
  5. Step 5: Solve for x
    x = 623,288,714.63/28,144.95
  6. Step 6: Final answer
    x = 22,145.67

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Half scale
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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.