Home / 28,749.06-39,670.59-16,000.20

Finding the Fourth Proportional to 28,749.06, 39,670.59 and 16,000.20

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Solution

The fourth proportional to 28,749.06, 39,670.59 and 16,000.20 is: 22,078.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.06 : 39,670.59 = 16,000.20 : x
  2. Step 2: Convert to fraction form
    28,749.06/39,670.59 = 16,000.20/x
  3. Step 3: Cross multiply
    28,749.06x = 39,670.59 × 16,000.20
  4. Step 4: Simplify right side
    28,749.06x = 634,737,374.12
  5. Step 5: Solve for x
    x = 634,737,374.12/28,749.06
  6. Step 6: Final answer
    x = 22,078.54

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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.