Home / 39,802.68-54,927.72-21,898.92

Finding the Fourth Proportional to 39,802.68, 54,927.72 and 21,898.92

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Solution

The fourth proportional to 39,802.68, 54,927.72 and 21,898.92 is: 30,220.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,802.68 : 54,927.72 = 21,898.92 : x
  2. Step 2: Convert to fraction form
    39,802.68/54,927.72 = 21,898.92/x
  3. Step 3: Cross multiply
    39,802.68x = 54,927.72 × 21,898.92
  4. Step 4: Simplify right side
    39,802.68x = 1,202,857,746.06
  5. Step 5: Solve for x
    x = 1,202,857,746.06/39,802.68
  6. Step 6: Final answer
    x = 30,220.52

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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.