Home / 38,878.66-53,657.73-21,886.24

Finding the Fourth Proportional to 38,878.66, 53,657.73 and 21,886.24

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Solution

The fourth proportional to 38,878.66, 53,657.73 and 21,886.24 is: 30,205.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,878.66 : 53,657.73 = 21,886.24 : x
  2. Step 2: Convert to fraction form
    38,878.66/53,657.73 = 21,886.24/x
  3. Step 3: Cross multiply
    38,878.66x = 53,657.73 × 21,886.24
  4. Step 4: Simplify right side
    38,878.66x = 1,174,365,956.64
  5. Step 5: Solve for x
    x = 1,174,365,956.64/38,878.66
  6. Step 6: Final answer
    x = 30,205.93

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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.