Home / 38,881.20-53,655.48-21,884.16

Finding the Fourth Proportional to 38,881.20, 53,655.48 and 21,884.16

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Solution

The fourth proportional to 38,881.20, 53,655.48 and 21,884.16 is: 30,199.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,881.20 : 53,655.48 = 21,884.16 : x
  2. Step 2: Convert to fraction form
    38,881.20/53,655.48 = 21,884.16/x
  3. Step 3: Cross multiply
    38,881.20x = 53,655.48 × 21,884.16
  4. Step 4: Simplify right side
    38,881.20x = 1,174,205,109.20
  5. Step 5: Solve for x
    x = 1,174,205,109.20/38,881.20
  6. Step 6: Final answer
    x = 30,199.82

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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.