Home / 19,907.85-27,461.40-12,442.89

Finding the Fourth Proportional to 19,907.85, 27,461.40 and 12,442.89

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Solution

The fourth proportional to 19,907.85, 27,461.40 and 12,442.89 is: 17,164.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.85 : 27,461.40 = 12,442.89 : x
  2. Step 2: Convert to fraction form
    19,907.85/27,461.40 = 12,442.89/x
  3. Step 3: Cross multiply
    19,907.85x = 27,461.40 × 12,442.89
  4. Step 4: Simplify right side
    19,907.85x = 341,699,179.45
  5. Step 5: Solve for x
    x = 341,699,179.45/19,907.85
  6. Step 6: Final answer
    x = 17,164.04

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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.