Home / 38,873.34-53,649.56-21,881.72

Finding the Fourth Proportional to 38,873.34, 53,649.56 and 21,881.72

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Solution

The fourth proportional to 38,873.34, 53,649.56 and 21,881.72 is: 30,199.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,873.34 : 53,649.56 = 21,881.72 : x
  2. Step 2: Convert to fraction form
    38,873.34/53,649.56 = 21,881.72/x
  3. Step 3: Cross multiply
    38,873.34x = 53,649.56 × 21,881.72
  4. Step 4: Simplify right side
    38,873.34x = 1,173,944,650.04
  5. Step 5: Solve for x
    x = 1,173,944,650.04/38,873.34
  6. Step 6: Final answer
    x = 30,199.22

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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.