Home / 20,563.36-30,862.32-16,485.28

Finding the Fourth Proportional to 20,563.36, 30,862.32 and 16,485.28

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Solution

The fourth proportional to 20,563.36, 30,862.32 and 16,485.28 is: 24,741.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.36 : 30,862.32 = 16,485.28 : x
  2. Step 2: Convert to fraction form
    20,563.36/30,862.32 = 16,485.28/x
  3. Step 3: Cross multiply
    20,563.36x = 30,862.32 × 16,485.28
  4. Step 4: Simplify right side
    20,563.36x = 508,773,986.65
  5. Step 5: Solve for x
    x = 508,773,986.65/20,563.36
  6. Step 6: Final answer
    x = 24,741.77

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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.