Home / 53,267.16-79,900.76-13,821

Finding the Fourth Proportional to 53,267.16, 79,900.76 and 13,821

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Solution

The fourth proportional to 53,267.16, 79,900.76 and 13,821 is: 20,731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,267.16 : 79,900.76 = 13,821 : x
  2. Step 2: Convert to fraction form
    53,267.16/79,900.76 = 13,821/x
  3. Step 3: Cross multiply
    53,267.16x = 79,900.76 × 13,821
  4. Step 4: Simplify right side
    53,267.16x = 1,104,308,403.96
  5. Step 5: Solve for x
    x = 1,104,308,403.96/53,267.16
  6. Step 6: Final answer
    x = 20,731.51

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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.