Home / 38,570.60-53,232.36-21,575.79

Finding the Fourth Proportional to 38,570.60, 53,232.36 and 21,575.79

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Solution

The fourth proportional to 38,570.60, 53,232.36 and 21,575.79 is: 29,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,570.60 : 53,232.36 = 21,575.79 : x
  2. Step 2: Convert to fraction form
    38,570.60/53,232.36 = 21,575.79/x
  3. Step 3: Cross multiply
    38,570.60x = 53,232.36 × 21,575.79
  4. Step 4: Simplify right side
    38,570.60x = 1,148,530,220.56
  5. Step 5: Solve for x
    x = 1,148,530,220.56/38,570.60
  6. Step 6: Final answer
    x = 29,777.35

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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.