Home / 28,686.86-39,584.67-16,111.34

Finding the Fourth Proportional to 28,686.86, 39,584.67 and 16,111.34

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Solution

The fourth proportional to 28,686.86, 39,584.67 and 16,111.34 is: 22,231.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686.86 : 39,584.67 = 16,111.34 : x
  2. Step 2: Convert to fraction form
    28,686.86/39,584.67 = 16,111.34/x
  3. Step 3: Cross multiply
    28,686.86x = 39,584.67 × 16,111.34
  4. Step 4: Simplify right side
    28,686.86x = 637,762,077.16
  5. Step 5: Solve for x
    x = 637,762,077.16/28,686.86
  6. Step 6: Final answer
    x = 22,231.85

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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.