Home / 38,433.12-53,037.72-21,666.12

Finding the Fourth Proportional to 38,433.12, 53,037.72 and 21,666.12

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Solution

The fourth proportional to 38,433.12, 53,037.72 and 21,666.12 is: 29,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,433.12 : 53,037.72 = 21,666.12 : x
  2. Step 2: Convert to fraction form
    38,433.12/53,037.72 = 21,666.12/x
  3. Step 3: Cross multiply
    38,433.12x = 53,037.72 × 21,666.12
  4. Step 4: Simplify right side
    38,433.12x = 1,149,121,606.05
  5. Step 5: Solve for x
    x = 1,149,121,606.05/38,433.12
  6. Step 6: Final answer
    x = 29,899.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.