Home / 30,979.88-46,453.34-12,259.16

Finding the Fourth Proportional to 30,979.88, 46,453.34 and 12,259.16

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Solution

The fourth proportional to 30,979.88, 46,453.34 and 12,259.16 is: 18,382.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979.88 : 46,453.34 = 12,259.16 : x
  2. Step 2: Convert to fraction form
    30,979.88/46,453.34 = 12,259.16/x
  3. Step 3: Cross multiply
    30,979.88x = 46,453.34 × 12,259.16
  4. Step 4: Simplify right side
    30,979.88x = 569,478,927.59
  5. Step 5: Solve for x
    x = 569,478,927.59/30,979.88
  6. Step 6: Final answer
    x = 18,382.22

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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.