Home / 28,318.99-39,081.34-16,984.35

Finding the Fourth Proportional to 28,318.99, 39,081.34 and 16,984.35

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Solution

The fourth proportional to 28,318.99, 39,081.34 and 16,984.35 is: 23,439.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,318.99 : 39,081.34 = 16,984.35 : x
  2. Step 2: Convert to fraction form
    28,318.99/39,081.34 = 16,984.35/x
  3. Step 3: Cross multiply
    28,318.99x = 39,081.34 × 16,984.35
  4. Step 4: Simplify right side
    28,318.99x = 663,771,218.90
  5. Step 5: Solve for x
    x = 663,771,218.90/28,318.99
  6. Step 6: Final answer
    x = 23,439.08

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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.