Home / 19,281.22-26,642.72-15,042.89

Finding the Fourth Proportional to 19,281.22, 26,642.72 and 15,042.89

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Solution

The fourth proportional to 19,281.22, 26,642.72 and 15,042.89 is: 20,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,281.22 : 26,642.72 = 15,042.89 : x
  2. Step 2: Convert to fraction form
    19,281.22/26,642.72 = 15,042.89/x
  3. Step 3: Cross multiply
    19,281.22x = 26,642.72 × 15,042.89
  4. Step 4: Simplify right side
    19,281.22x = 400,783,506.26
  5. Step 5: Solve for x
    x = 400,783,506.26/19,281.22
  6. Step 6: Final answer
    x = 20,786.21

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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.