Home / 28,273.66-39,000.29-20,326.55

Finding the Fourth Proportional to 28,273.66, 39,000.29 and 20,326.55

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Solution

The fourth proportional to 28,273.66, 39,000.29 and 20,326.55 is: 28,038.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,273.66 : 39,000.29 = 20,326.55 : x
  2. Step 2: Convert to fraction form
    28,273.66/39,000.29 = 20,326.55/x
  3. Step 3: Cross multiply
    28,273.66x = 39,000.29 × 20,326.55
  4. Step 4: Simplify right side
    28,273.66x = 792,741,048.07
  5. Step 5: Solve for x
    x = 792,741,048.07/28,273.66
  6. Step 6: Final answer
    x = 28,038.15

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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.