Home / 19,290.36-28,894.50-11,384.34

Finding the Fourth Proportional to 19,290.36, 28,894.50 and 11,384.34

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Solution

The fourth proportional to 19,290.36, 28,894.50 and 11,384.34 is: 17,052.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.36 : 28,894.50 = 11,384.34 : x
  2. Step 2: Convert to fraction form
    19,290.36/28,894.50 = 11,384.34/x
  3. Step 3: Cross multiply
    19,290.36x = 28,894.50 × 11,384.34
  4. Step 4: Simplify right side
    19,290.36x = 328,944,812.13
  5. Step 5: Solve for x
    x = 328,944,812.13/19,290.36
  6. Step 6: Final answer
    x = 17,052.29

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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.