Home / 28,941.78-39,927.90-18,866.69

Finding the Fourth Proportional to 28,941.78, 39,927.90 and 18,866.69

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Solution

The fourth proportional to 28,941.78, 39,927.90 and 18,866.69 is: 26,028.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.78 : 39,927.90 = 18,866.69 : x
  2. Step 2: Convert to fraction form
    28,941.78/39,927.90 = 18,866.69/x
  3. Step 3: Cross multiply
    28,941.78x = 39,927.90 × 18,866.69
  4. Step 4: Simplify right side
    28,941.78x = 753,307,017.68
  5. Step 5: Solve for x
    x = 753,307,017.68/28,941.78
  6. Step 6: Final answer
    x = 26,028.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.