Home / 43,010.70-64,534.26-20,840.58

Finding the Fourth Proportional to 43,010.70, 64,534.26 and 20,840.58

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Solution

The fourth proportional to 43,010.70, 64,534.26 and 20,840.58 is: 31,269.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,010.70 : 64,534.26 = 20,840.58 : x
  2. Step 2: Convert to fraction form
    43,010.70/64,534.26 = 20,840.58/x
  3. Step 3: Cross multiply
    43,010.70x = 64,534.26 × 20,840.58
  4. Step 4: Simplify right side
    43,010.70x = 1,344,931,408.27
  5. Step 5: Solve for x
    x = 1,344,931,408.27/43,010.70
  6. Step 6: Final answer
    x = 31,269.69

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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.