Home / 19,838.13-27,389.45-12,292.47

Finding the Fourth Proportional to 19,838.13, 27,389.45 and 12,292.47

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Solution

The fourth proportional to 19,838.13, 27,389.45 and 12,292.47 is: 16,971.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,838.13 : 27,389.45 = 12,292.47 : x
  2. Step 2: Convert to fraction form
    19,838.13/27,389.45 = 12,292.47/x
  3. Step 3: Cross multiply
    19,838.13x = 27,389.45 × 12,292.47
  4. Step 4: Simplify right side
    19,838.13x = 336,683,954.03
  5. Step 5: Solve for x
    x = 336,683,954.03/19,838.13
  6. Step 6: Final answer
    x = 16,971.56

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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.