Home / 28,311.48-39,058.34-16,981.48

Finding the Fourth Proportional to 28,311.48, 39,058.34 and 16,981.48

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Solution

The fourth proportional to 28,311.48, 39,058.34 and 16,981.48 is: 23,427.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,311.48 : 39,058.34 = 16,981.48 : x
  2. Step 2: Convert to fraction form
    28,311.48/39,058.34 = 16,981.48/x
  3. Step 3: Cross multiply
    28,311.48x = 39,058.34 × 16,981.48
  4. Step 4: Simplify right side
    28,311.48x = 663,268,419.54
  5. Step 5: Solve for x
    x = 663,268,419.54/28,311.48
  6. Step 6: Final answer
    x = 23,427.54

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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.