Home / 28,160.63-38,861.67-16,225.08

Finding the Fourth Proportional to 28,160.63, 38,861.67 and 16,225.08

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Solution

The fourth proportional to 28,160.63, 38,861.67 and 16,225.08 is: 22,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,160.63 : 38,861.67 = 16,225.08 : x
  2. Step 2: Convert to fraction form
    28,160.63/38,861.67 = 16,225.08/x
  3. Step 3: Cross multiply
    28,160.63x = 38,861.67 × 16,225.08
  4. Step 4: Simplify right side
    28,160.63x = 630,533,704.68
  5. Step 5: Solve for x
    x = 630,533,704.68/28,160.63
  6. Step 6: Final answer
    x = 22,390.61

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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.