Home / 39,706.83-54,795.06-21,802.59

Finding the Fourth Proportional to 39,706.83, 54,795.06 and 21,802.59

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Solution

The fourth proportional to 39,706.83, 54,795.06 and 21,802.59 is: 30,087.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,706.83 : 54,795.06 = 21,802.59 : x
  2. Step 2: Convert to fraction form
    39,706.83/54,795.06 = 21,802.59/x
  3. Step 3: Cross multiply
    39,706.83x = 54,795.06 × 21,802.59
  4. Step 4: Simplify right side
    39,706.83x = 1,194,674,227.21
  5. Step 5: Solve for x
    x = 1,194,674,227.21/39,706.83
  6. Step 6: Final answer
    x = 30,087.37

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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.