Home / 20,368.47-30,554.82-5,577.39

Finding the Fourth Proportional to 20,368.47, 30,554.82 and 5,577.39

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Solution

The fourth proportional to 20,368.47, 30,554.82 and 5,577.39 is: 8,366.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368.47 : 30,554.82 = 5,577.39 : x
  2. Step 2: Convert to fraction form
    20,368.47/30,554.82 = 5,577.39/x
  3. Step 3: Cross multiply
    20,368.47x = 30,554.82 × 5,577.39
  4. Step 4: Simplify right side
    20,368.47x = 170,416,147.52
  5. Step 5: Solve for x
    x = 170,416,147.52/20,368.47
  6. Step 6: Final answer
    x = 8,366.66

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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.