Home / 28,789.63-39,728.07-16,042.05

Finding the Fourth Proportional to 28,789.63, 39,728.07 and 16,042.05

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Solution

The fourth proportional to 28,789.63, 39,728.07 and 16,042.05 is: 22,137.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.63 : 39,728.07 = 16,042.05 : x
  2. Step 2: Convert to fraction form
    28,789.63/39,728.07 = 16,042.05/x
  3. Step 3: Cross multiply
    28,789.63x = 39,728.07 × 16,042.05
  4. Step 4: Simplify right side
    28,789.63x = 637,319,685.34
  5. Step 5: Solve for x
    x = 637,319,685.34/28,789.63
  6. Step 6: Final answer
    x = 22,137.13

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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.