Home / 38,883.78-53,659.06-21,888.02

Finding the Fourth Proportional to 38,883.78, 53,659.06 and 21,888.02

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Solution

The fourth proportional to 38,883.78, 53,659.06 and 21,888.02 is: 30,205.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,883.78 : 53,659.06 = 21,888.02 : x
  2. Step 2: Convert to fraction form
    38,883.78/53,659.06 = 21,888.02/x
  3. Step 3: Cross multiply
    38,883.78x = 53,659.06 × 21,888.02
  4. Step 4: Simplify right side
    38,883.78x = 1,174,490,657.89
  5. Step 5: Solve for x
    x = 1,174,490,657.89/38,883.78
  6. Step 6: Final answer
    x = 30,205.16

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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.