Home / 38,427.96-53,028.72-21,433.98

Finding the Fourth Proportional to 38,427.96, 53,028.72 and 21,433.98

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Solution

The fourth proportional to 38,427.96, 53,028.72 and 21,433.98 is: 29,577.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,427.96 : 53,028.72 = 21,433.98 : x
  2. Step 2: Convert to fraction form
    38,427.96/53,028.72 = 21,433.98/x
  3. Step 3: Cross multiply
    38,427.96x = 53,028.72 × 21,433.98
  4. Step 4: Simplify right side
    38,427.96x = 1,136,616,523.91
  5. Step 5: Solve for x
    x = 1,136,616,523.91/38,427.96
  6. Step 6: Final answer
    x = 29,577.85

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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.