Home / 30,918.70-46,341.60-12,189.07

Finding the Fourth Proportional to 30,918.70, 46,341.60 and 12,189.07

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Solution

The fourth proportional to 30,918.70, 46,341.60 and 12,189.07 is: 18,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,918.70 : 46,341.60 = 12,189.07 : x
  2. Step 2: Convert to fraction form
    30,918.70/46,341.60 = 12,189.07/x
  3. Step 3: Cross multiply
    30,918.70x = 46,341.60 × 12,189.07
  4. Step 4: Simplify right side
    30,918.70x = 564,861,006.31
  5. Step 5: Solve for x
    x = 564,861,006.31/30,918.70
  6. Step 6: Final answer
    x = 18,269.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.