Home / 28,782.90-39,721.08-16,036.94

Finding the Fourth Proportional to 28,782.90, 39,721.08 and 16,036.94

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Solution

The fourth proportional to 28,782.90, 39,721.08 and 16,036.94 is: 22,131.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782.90 : 39,721.08 = 16,036.94 : x
  2. Step 2: Convert to fraction form
    28,782.90/39,721.08 = 16,036.94/x
  3. Step 3: Cross multiply
    28,782.90x = 39,721.08 × 16,036.94
  4. Step 4: Simplify right side
    28,782.90x = 637,004,576.70
  5. Step 5: Solve for x
    x = 637,004,576.70/28,782.90
  6. Step 6: Final answer
    x = 22,131.35

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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.