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Finding the Fourth Proportional to 21,361.69, 32,042.54 and 5,779.32

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Solution

The fourth proportional to 21,361.69, 32,042.54 and 5,779.32 is: 8,668.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,361.69 : 32,042.54 = 5,779.32 : x
  2. Step 2: Convert to fraction form
    21,361.69/32,042.54 = 5,779.32/x
  3. Step 3: Cross multiply
    21,361.69x = 32,042.54 × 5,779.32
  4. Step 4: Simplify right side
    21,361.69x = 185,184,039.93
  5. Step 5: Solve for x
    x = 185,184,039.93/21,361.69
  6. Step 6: Final answer
    x = 8,668.98

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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.