Home / 38,579.64-53,240.88-21,583.32

Finding the Fourth Proportional to 38,579.64, 53,240.88 and 21,583.32

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Solution

The fourth proportional to 38,579.64, 53,240.88 and 21,583.32 is: 29,785.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,579.64 : 53,240.88 = 21,583.32 : x
  2. Step 2: Convert to fraction form
    38,579.64/53,240.88 = 21,583.32/x
  3. Step 3: Cross multiply
    38,579.64x = 53,240.88 × 21,583.32
  4. Step 4: Simplify right side
    38,579.64x = 1,149,114,950.12
  5. Step 5: Solve for x
    x = 1,149,114,950.12/38,579.64
  6. Step 6: Final answer
    x = 29,785.53

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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.