Home / 21,176.44-31,765.32-7,852.75

Finding the Fourth Proportional to 21,176.44, 31,765.32 and 7,852.75

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Solution

The fourth proportional to 21,176.44, 31,765.32 and 7,852.75 is: 11,779.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.44 : 31,765.32 = 7,852.75 : x
  2. Step 2: Convert to fraction form
    21,176.44/31,765.32 = 7,852.75/x
  3. Step 3: Cross multiply
    21,176.44x = 31,765.32 × 7,852.75
  4. Step 4: Simplify right side
    21,176.44x = 249,445,116.63
  5. Step 5: Solve for x
    x = 249,445,116.63/21,176.44
  6. Step 6: Final answer
    x = 11,779.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.