Home / 30,813.37-42,522.45-16,666.22

Finding the Fourth Proportional to 30,813.37, 42,522.45 and 16,666.22

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Solution

The fourth proportional to 30,813.37, 42,522.45 and 16,666.22 is: 22,999.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,813.37 : 42,522.45 = 16,666.22 : x
  2. Step 2: Convert to fraction form
    30,813.37/42,522.45 = 16,666.22/x
  3. Step 3: Cross multiply
    30,813.37x = 42,522.45 × 16,666.22
  4. Step 4: Simplify right side
    30,813.37x = 708,688,294.03
  5. Step 5: Solve for x
    x = 708,688,294.03/30,813.37
  6. Step 6: Final answer
    x = 22,999.38

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Double scale
Find fourth proportional to 30,814.37, 42,523.83 and 16,667.22
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.