Home / 30,813.39-42,522.48-16,666.23

Finding the Fourth Proportional to 30,813.39, 42,522.48 and 16,666.23

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Solution

The fourth proportional to 30,813.39, 42,522.48 and 16,666.23 is: 22,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,813.39 : 42,522.48 = 16,666.23 : x
  2. Step 2: Convert to fraction form
    30,813.39/42,522.48 = 16,666.23/x
  3. Step 3: Cross multiply
    30,813.39x = 42,522.48 × 16,666.23
  4. Step 4: Simplify right side
    30,813.39x = 708,689,431.85
  5. Step 5: Solve for x
    x = 708,689,431.85/30,813.39
  6. Step 6: Final answer
    x = 22,999.40

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Double scale
Find fourth proportional to 30,814.39, 42,523.86 and 16,667.23
Similar ratio
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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.