Home / 38,990.43-53,809.88-22,223.07

Finding the Fourth Proportional to 38,990.43, 53,809.88 and 22,223.07

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Solution

The fourth proportional to 38,990.43, 53,809.88 and 22,223.07 is: 30,669.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,990.43 : 53,809.88 = 22,223.07 : x
  2. Step 2: Convert to fraction form
    38,990.43/53,809.88 = 22,223.07/x
  3. Step 3: Cross multiply
    38,990.43x = 53,809.88 × 22,223.07
  4. Step 4: Simplify right side
    38,990.43x = 1,195,820,618.82
  5. Step 5: Solve for x
    x = 1,195,820,618.82/38,990.43
  6. Step 6: Final answer
    x = 30,669.59

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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.