Home / 19,726.74-27,206.28-16,920.09

Finding the Fourth Proportional to 19,726.74, 27,206.28 and 16,920.09

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Solution

The fourth proportional to 19,726.74, 27,206.28 and 16,920.09 is: 23,335.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,726.74 : 27,206.28 = 16,920.09 : x
  2. Step 2: Convert to fraction form
    19,726.74/27,206.28 = 16,920.09/x
  3. Step 3: Cross multiply
    19,726.74x = 27,206.28 × 16,920.09
  4. Step 4: Simplify right side
    19,726.74x = 460,332,706.17
  5. Step 5: Solve for x
    x = 460,332,706.17/19,726.74
  6. Step 6: Final answer
    x = 23,335.47

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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.