Home / 20,370.36-30,570.90-16,315.32

Finding the Fourth Proportional to 20,370.36, 30,570.90 and 16,315.32

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Solution

The fourth proportional to 20,370.36, 30,570.90 and 16,315.32 is: 24,485.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.36 : 30,570.90 = 16,315.32 : x
  2. Step 2: Convert to fraction form
    20,370.36/30,570.90 = 16,315.32/x
  3. Step 3: Cross multiply
    20,370.36x = 30,570.90 × 16,315.32
  4. Step 4: Simplify right side
    20,370.36x = 498,774,016.19
  5. Step 5: Solve for x
    x = 498,774,016.19/20,370.36
  6. Step 6: Final answer
    x = 24,485.28

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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.