Home / 53,303.87-79,941.20-20,021.36

Finding the Fourth Proportional to 53,303.87, 79,941.20 and 20,021.36

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Solution

The fourth proportional to 53,303.87, 79,941.20 and 20,021.36 is: 30,026.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,303.87 : 79,941.20 = 20,021.36 : x
  2. Step 2: Convert to fraction form
    53,303.87/79,941.20 = 20,021.36/x
  3. Step 3: Cross multiply
    53,303.87x = 79,941.20 × 20,021.36
  4. Step 4: Simplify right side
    53,303.87x = 1,600,531,194.38
  5. Step 5: Solve for x
    x = 1,600,531,194.38/53,303.87
  6. Step 6: Final answer
    x = 30,026.55

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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.