Home / 38,755.44-53,482.56-21,989.52

Finding the Fourth Proportional to 38,755.44, 53,482.56 and 21,989.52

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Solution

The fourth proportional to 38,755.44, 53,482.56 and 21,989.52 is: 30,345.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,755.44 : 53,482.56 = 21,989.52 : x
  2. Step 2: Convert to fraction form
    38,755.44/53,482.56 = 21,989.52/x
  3. Step 3: Cross multiply
    38,755.44x = 53,482.56 × 21,989.52
  4. Step 4: Simplify right side
    38,755.44x = 1,176,055,822.77
  5. Step 5: Solve for x
    x = 1,176,055,822.77/38,755.44
  6. Step 6: Final answer
    x = 30,345.57

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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.