Home / 28,313.40-39,074.68-16,983.34

Finding the Fourth Proportional to 28,313.40, 39,074.68 and 16,983.34

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Solution

The fourth proportional to 28,313.40, 39,074.68 and 16,983.34 is: 23,438.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.40 : 39,074.68 = 16,983.34 : x
  2. Step 2: Convert to fraction form
    28,313.40/39,074.68 = 16,983.34/x
  3. Step 3: Cross multiply
    28,313.40x = 39,074.68 × 16,983.34
  4. Step 4: Simplify right side
    28,313.40x = 663,618,575.83
  5. Step 5: Solve for x
    x = 663,618,575.83/28,313.40
  6. Step 6: Final answer
    x = 23,438.32

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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.