Home / 43,638.85-65,459.70-12,051.28

Finding the Fourth Proportional to 43,638.85, 65,459.70 and 12,051.28

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Solution

The fourth proportional to 43,638.85, 65,459.70 and 12,051.28 is: 18,077.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,638.85 : 65,459.70 = 12,051.28 : x
  2. Step 2: Convert to fraction form
    43,638.85/65,459.70 = 12,051.28/x
  3. Step 3: Cross multiply
    43,638.85x = 65,459.70 × 12,051.28
  4. Step 4: Simplify right side
    43,638.85x = 788,873,173.42
  5. Step 5: Solve for x
    x = 788,873,173.42/43,638.85
  6. Step 6: Final answer
    x = 18,077.31

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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.