Home / 28,825.76-39,779.96-17,647.76

Finding the Fourth Proportional to 28,825.76, 39,779.96 and 17,647.76

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Solution

The fourth proportional to 28,825.76, 39,779.96 and 17,647.76 is: 24,354.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,825.76 : 39,779.96 = 17,647.76 : x
  2. Step 2: Convert to fraction form
    28,825.76/39,779.96 = 17,647.76/x
  3. Step 3: Cross multiply
    28,825.76x = 39,779.96 × 17,647.76
  4. Step 4: Simplify right side
    28,825.76x = 702,027,186.89
  5. Step 5: Solve for x
    x = 702,027,186.89/28,825.76
  6. Step 6: Final answer
    x = 24,354.16

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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.