Home / 19,865.69-29,759.56-11,528.21

Finding the Fourth Proportional to 19,865.69, 29,759.56 and 11,528.21

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Solution

The fourth proportional to 19,865.69, 29,759.56 and 11,528.21 is: 17,269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.69 : 29,759.56 = 11,528.21 : x
  2. Step 2: Convert to fraction form
    19,865.69/29,759.56 = 11,528.21/x
  3. Step 3: Cross multiply
    19,865.69x = 29,759.56 × 11,528.21
  4. Step 4: Simplify right side
    19,865.69x = 343,074,457.19
  5. Step 5: Solve for x
    x = 343,074,457.19/19,865.69
  6. Step 6: Final answer
    x = 17,269.70

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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.