Home / 43,407.09-65,008.54-21,150.72

Finding the Fourth Proportional to 43,407.09, 65,008.54 and 21,150.72

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Solution

The fourth proportional to 43,407.09, 65,008.54 and 21,150.72 is: 31,676.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,407.09 : 65,008.54 = 21,150.72 : x
  2. Step 2: Convert to fraction form
    43,407.09/65,008.54 = 21,150.72/x
  3. Step 3: Cross multiply
    43,407.09x = 65,008.54 × 21,150.72
  4. Step 4: Simplify right side
    43,407.09x = 1,374,977,427.15
  5. Step 5: Solve for x
    x = 1,374,977,427.15/43,407.09
  6. Step 6: Final answer
    x = 31,676.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.