Home / 43,211.16-64,819.08-13,631.22

Finding the Fourth Proportional to 43,211.16, 64,819.08 and 13,631.22

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Solution

The fourth proportional to 43,211.16, 64,819.08 and 13,631.22 is: 20,447.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,211.16 : 64,819.08 = 13,631.22 : x
  2. Step 2: Convert to fraction form
    43,211.16/64,819.08 = 13,631.22/x
  3. Step 3: Cross multiply
    43,211.16x = 64,819.08 × 13,631.22
  4. Step 4: Simplify right side
    43,211.16x = 883,563,139.68
  5. Step 5: Solve for x
    x = 883,563,139.68/43,211.16
  6. Step 6: Final answer
    x = 20,447.57

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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.