Home / 30,399.16-41,947.08-16,971.16

Finding the Fourth Proportional to 30,399.16, 41,947.08 and 16,971.16

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Solution

The fourth proportional to 30,399.16, 41,947.08 and 16,971.16 is: 23,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,399.16 : 41,947.08 = 16,971.16 : x
  2. Step 2: Convert to fraction form
    30,399.16/41,947.08 = 16,971.16/x
  3. Step 3: Cross multiply
    30,399.16x = 41,947.08 × 16,971.16
  4. Step 4: Simplify right side
    30,399.16x = 711,890,606.21
  5. Step 5: Solve for x
    x = 711,890,606.21/30,399.16
  6. Step 6: Final answer
    x = 23,418.10

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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.