Home / 33,318.75-45,979.95-18,211.60

Finding the Fourth Proportional to 33,318.75, 45,979.95 and 18,211.60

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Solution

The fourth proportional to 33,318.75, 45,979.95 and 18,211.60 is: 25,132.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,318.75 : 45,979.95 = 18,211.60 : x
  2. Step 2: Convert to fraction form
    33,318.75/45,979.95 = 18,211.60/x
  3. Step 3: Cross multiply
    33,318.75x = 45,979.95 × 18,211.60
  4. Step 4: Simplify right side
    33,318.75x = 837,368,457.42
  5. Step 5: Solve for x
    x = 837,368,457.42/33,318.75
  6. Step 6: Final answer
    x = 25,132.05

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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.