Home / 20,888.69-31,333.23-9,803.23

Finding the Fourth Proportional to 20,888.69, 31,333.23 and 9,803.23

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Solution

The fourth proportional to 20,888.69, 31,333.23 and 9,803.23 is: 14,704.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.69 : 31,333.23 = 9,803.23 : x
  2. Step 2: Convert to fraction form
    20,888.69/31,333.23 = 9,803.23/x
  3. Step 3: Cross multiply
    20,888.69x = 31,333.23 × 9,803.23
  4. Step 4: Simplify right side
    20,888.69x = 307,166,782.00
  5. Step 5: Solve for x
    x = 307,166,782.00/20,888.69
  6. Step 6: Final answer
    x = 14,704.94

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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.