Home / 38,445.06-53,054.19-21,678.06

Finding the Fourth Proportional to 38,445.06, 53,054.19 and 21,678.06

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Solution

The fourth proportional to 38,445.06, 53,054.19 and 21,678.06 is: 29,915.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,445.06 : 53,054.19 = 21,678.06 : x
  2. Step 2: Convert to fraction form
    38,445.06/53,054.19 = 21,678.06/x
  3. Step 3: Cross multiply
    38,445.06x = 53,054.19 × 21,678.06
  4. Step 4: Simplify right side
    38,445.06x = 1,150,111,914.07
  5. Step 5: Solve for x
    x = 1,150,111,914.07/38,445.06
  6. Step 6: Final answer
    x = 29,915.73

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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.