Home / 28,851.89-39,815.47-16,104.35

Finding the Fourth Proportional to 28,851.89, 39,815.47 and 16,104.35

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Solution

The fourth proportional to 28,851.89, 39,815.47 and 16,104.35 is: 22,223.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,851.89 : 39,815.47 = 16,104.35 : x
  2. Step 2: Convert to fraction form
    28,851.89/39,815.47 = 16,104.35/x
  3. Step 3: Cross multiply
    28,851.89x = 39,815.47 × 16,104.35
  4. Step 4: Simplify right side
    28,851.89x = 641,202,024.96
  5. Step 5: Solve for x
    x = 641,202,024.96/28,851.89
  6. Step 6: Final answer
    x = 22,223.92

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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.