Home / 38,643.36-53,327.76-21,877.92

Finding the Fourth Proportional to 38,643.36, 53,327.76 and 21,877.92

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Solution

The fourth proportional to 38,643.36, 53,327.76 and 21,877.92 is: 30,191.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,643.36 : 53,327.76 = 21,877.92 : x
  2. Step 2: Convert to fraction form
    38,643.36/53,327.76 = 21,877.92/x
  3. Step 3: Cross multiply
    38,643.36x = 53,327.76 × 21,877.92
  4. Step 4: Simplify right side
    38,643.36x = 1,166,700,467.06
  5. Step 5: Solve for x
    x = 1,166,700,467.06/38,643.36
  6. Step 6: Final answer
    x = 30,191.49

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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.