Home / 20,907.40-28,862.03-14,020.29

Finding the Fourth Proportional to 20,907.40, 28,862.03 and 14,020.29

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Solution

The fourth proportional to 20,907.40, 28,862.03 and 14,020.29 is: 19,354.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,907.40 : 28,862.03 = 14,020.29 : x
  2. Step 2: Convert to fraction form
    20,907.40/28,862.03 = 14,020.29/x
  3. Step 3: Cross multiply
    20,907.40x = 28,862.03 × 14,020.29
  4. Step 4: Simplify right side
    20,907.40x = 404,654,065.64
  5. Step 5: Solve for x
    x = 404,654,065.64/20,907.40
  6. Step 6: Final answer
    x = 19,354.58

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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.