Home / 28,574.70-39,433.44-15,999.48

Finding the Fourth Proportional to 28,574.70, 39,433.44 and 15,999.48

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Solution

The fourth proportional to 28,574.70, 39,433.44 and 15,999.48 is: 22,079.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,574.70 : 39,433.44 = 15,999.48 : x
  2. Step 2: Convert to fraction form
    28,574.70/39,433.44 = 15,999.48/x
  3. Step 3: Cross multiply
    28,574.70x = 39,433.44 × 15,999.48
  4. Step 4: Simplify right side
    28,574.70x = 630,914,534.61
  5. Step 5: Solve for x
    x = 630,914,534.61/28,574.70
  6. Step 6: Final answer
    x = 22,079.48

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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.