Home / 19,091.70-28,637.55-5,240.70

Finding the Fourth Proportional to 19,091.70, 28,637.55 and 5,240.70

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Solution

The fourth proportional to 19,091.70, 28,637.55 and 5,240.70 is: 7,861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,091.70 : 28,637.55 = 5,240.70 : x
  2. Step 2: Convert to fraction form
    19,091.70/28,637.55 = 5,240.70/x
  3. Step 3: Cross multiply
    19,091.70x = 28,637.55 × 5,240.70
  4. Step 4: Simplify right side
    19,091.70x = 150,080,808.29
  5. Step 5: Solve for x
    x = 150,080,808.29/19,091.70
  6. Step 6: Final answer
    x = 7,861.05

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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.