Home / 28,647.66-39,534.19-15,901.67

Finding the Fourth Proportional to 28,647.66, 39,534.19 and 15,901.67

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Solution

The fourth proportional to 28,647.66, 39,534.19 and 15,901.67 is: 21,944.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.66 : 39,534.19 = 15,901.67 : x
  2. Step 2: Convert to fraction form
    28,647.66/39,534.19 = 15,901.67/x
  3. Step 3: Cross multiply
    28,647.66x = 39,534.19 × 15,901.67
  4. Step 4: Simplify right side
    28,647.66x = 628,659,643.10
  5. Step 5: Solve for x
    x = 628,659,643.10/28,647.66
  6. Step 6: Final answer
    x = 21,944.54

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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.