Home / 39,802.92-54,929.37-21,898.68

Finding the Fourth Proportional to 39,802.92, 54,929.37 and 21,898.68

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Solution

The fourth proportional to 39,802.92, 54,929.37 and 21,898.68 is: 30,220.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,802.92 : 54,929.37 = 21,898.68 : x
  2. Step 2: Convert to fraction form
    39,802.92/54,929.37 = 21,898.68/x
  3. Step 3: Cross multiply
    39,802.92x = 54,929.37 × 21,898.68
  4. Step 4: Simplify right side
    39,802.92x = 1,202,880,696.23
  5. Step 5: Solve for x
    x = 1,202,880,696.23/39,802.92
  6. Step 6: Final answer
    x = 30,220.92

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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.