Home / 38,755.06-53,480.26-21,759.00

Finding the Fourth Proportional to 38,755.06, 53,480.26 and 21,759.00

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Solution

The fourth proportional to 38,755.06, 53,480.26 and 21,759.00 is: 30,026.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,755.06 : 53,480.26 = 21,759.00 : x
  2. Step 2: Convert to fraction form
    38,755.06/53,480.26 = 21,759.00/x
  3. Step 3: Cross multiply
    38,755.06x = 53,480.26 × 21,759.00
  4. Step 4: Simplify right side
    38,755.06x = 1,163,676,809.70
  5. Step 5: Solve for x
    x = 1,163,676,809.70/38,755.06
  6. Step 6: Final answer
    x = 30,026.45

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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.