Home / 28,235.06-38,971.47-19,175.75

Finding the Fourth Proportional to 28,235.06, 38,971.47 and 19,175.75

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Solution

The fourth proportional to 28,235.06, 38,971.47 and 19,175.75 is: 26,467.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,235.06 : 38,971.47 = 19,175.75 : x
  2. Step 2: Convert to fraction form
    28,235.06/38,971.47 = 19,175.75/x
  3. Step 3: Cross multiply
    28,235.06x = 38,971.47 × 19,175.75
  4. Step 4: Simplify right side
    28,235.06x = 747,307,165.85
  5. Step 5: Solve for x
    x = 747,307,165.85/28,235.06
  6. Step 6: Final answer
    x = 26,467.35

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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.