Home / 19,160.49-28,728.87-8,061.45

Finding the Fourth Proportional to 19,160.49, 28,728.87 and 8,061.45

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Solution

The fourth proportional to 19,160.49, 28,728.87 and 8,061.45 is: 12,087.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,160.49 : 28,728.87 = 8,061.45 : x
  2. Step 2: Convert to fraction form
    19,160.49/28,728.87 = 8,061.45/x
  3. Step 3: Cross multiply
    19,160.49x = 28,728.87 × 8,061.45
  4. Step 4: Simplify right side
    19,160.49x = 231,596,349.06
  5. Step 5: Solve for x
    x = 231,596,349.06/19,160.49
  6. Step 6: Final answer
    x = 12,087.18

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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.