Home / 43,010.44-64,515.67-13,430.81

Finding the Fourth Proportional to 43,010.44, 64,515.67 and 13,430.81

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Solution

The fourth proportional to 43,010.44, 64,515.67 and 13,430.81 is: 20,146.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,010.44 : 64,515.67 = 13,430.81 : x
  2. Step 2: Convert to fraction form
    43,010.44/64,515.67 = 13,430.81/x
  3. Step 3: Cross multiply
    43,010.44x = 64,515.67 × 13,430.81
  4. Step 4: Simplify right side
    43,010.44x = 866,497,833.50
  5. Step 5: Solve for x
    x = 866,497,833.50/43,010.44
  6. Step 6: Final answer
    x = 20,146.22

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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.