Home / 38,878.16-53,649.66-21,883.13

Finding the Fourth Proportional to 38,878.16, 53,649.66 and 21,883.13

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Solution

The fourth proportional to 38,878.16, 53,649.66 and 21,883.13 is: 30,197.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,878.16 : 53,649.66 = 21,883.13 : x
  2. Step 2: Convert to fraction form
    38,878.16/53,649.66 = 21,883.13/x
  3. Step 3: Cross multiply
    38,878.16x = 53,649.66 × 21,883.13
  4. Step 4: Simplify right side
    38,878.16x = 1,174,022,484.24
  5. Step 5: Solve for x
    x = 1,174,022,484.24/38,878.16
  6. Step 6: Final answer
    x = 30,197.48

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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.