Home / 21,323.93-31,985.90-5,741.55

Finding the Fourth Proportional to 21,323.93, 31,985.90 and 5,741.55

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Solution

The fourth proportional to 21,323.93, 31,985.90 and 5,741.55 is: 8,612.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323.93 : 31,985.90 = 5,741.55 : x
  2. Step 2: Convert to fraction form
    21,323.93/31,985.90 = 5,741.55/x
  3. Step 3: Cross multiply
    21,323.93x = 31,985.90 × 5,741.55
  4. Step 4: Simplify right side
    21,323.93x = 183,648,735.38
  5. Step 5: Solve for x
    x = 183,648,735.38/21,323.93
  6. Step 6: Final answer
    x = 8,612.33

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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.