Home / 20,070.05-27,696.69-12,511.89

Finding the Fourth Proportional to 20,070.05, 27,696.69 and 12,511.89

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Solution

The fourth proportional to 20,070.05, 27,696.69 and 12,511.89 is: 17,266.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.05 : 27,696.69 = 12,511.89 : x
  2. Step 2: Convert to fraction form
    20,070.05/27,696.69 = 12,511.89/x
  3. Step 3: Cross multiply
    20,070.05x = 27,696.69 × 12,511.89
  4. Step 4: Simplify right side
    20,070.05x = 346,537,938.64
  5. Step 5: Solve for x
    x = 346,537,938.64/20,070.05
  6. Step 6: Final answer
    x = 17,266.43

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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.