Home / 27,622.31-38,133.21-21,559.52

Finding the Fourth Proportional to 27,622.31, 38,133.21 and 21,559.52

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Solution

The fourth proportional to 27,622.31, 38,133.21 and 21,559.52 is: 29,763.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,622.31 : 38,133.21 = 21,559.52 : x
  2. Step 2: Convert to fraction form
    27,622.31/38,133.21 = 21,559.52/x
  3. Step 3: Cross multiply
    27,622.31x = 38,133.21 × 21,559.52
  4. Step 4: Simplify right side
    27,622.31x = 822,133,512.99
  5. Step 5: Solve for x
    x = 822,133,512.99/27,622.31
  6. Step 6: Final answer
    x = 29,763.39

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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.