Home / 28,696.30-43,042.78-12,897.26

Finding the Fourth Proportional to 28,696.30, 43,042.78 and 12,897.26

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Solution

The fourth proportional to 28,696.30, 43,042.78 and 12,897.26 is: 19,345.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,696.30 : 43,042.78 = 12,897.26 : x
  2. Step 2: Convert to fraction form
    28,696.30/43,042.78 = 12,897.26/x
  3. Step 3: Cross multiply
    28,696.30x = 43,042.78 × 12,897.26
  4. Step 4: Simplify right side
    28,696.30x = 555,133,924.78
  5. Step 5: Solve for x
    x = 555,133,924.78/28,696.30
  6. Step 6: Final answer
    x = 19,345.14

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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.