Home / 38,574.42-53,237.62-21,579.60

Finding the Fourth Proportional to 38,574.42, 53,237.62 and 21,579.60

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Solution

The fourth proportional to 38,574.42, 53,237.62 and 21,579.60 is: 29,782.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,574.42 : 53,237.62 = 21,579.60 : x
  2. Step 2: Convert to fraction form
    38,574.42/53,237.62 = 21,579.60/x
  3. Step 3: Cross multiply
    38,574.42x = 53,237.62 × 21,579.60
  4. Step 4: Simplify right side
    38,574.42x = 1,148,846,544.55
  5. Step 5: Solve for x
    x = 1,148,846,544.55/38,574.42
  6. Step 6: Final answer
    x = 29,782.60

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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.