Home / 20,315.03-30,447.17-9,783.08

Finding the Fourth Proportional to 20,315.03, 30,447.17 and 9,783.08

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Solution

The fourth proportional to 20,315.03, 30,447.17 and 9,783.08 is: 14,662.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,315.03 : 30,447.17 = 9,783.08 : x
  2. Step 2: Convert to fraction form
    20,315.03/30,447.17 = 9,783.08/x
  3. Step 3: Cross multiply
    20,315.03x = 30,447.17 × 9,783.08
  4. Step 4: Simplify right side
    20,315.03x = 297,867,127.09
  5. Step 5: Solve for x
    x = 297,867,127.09/20,315.03
  6. Step 6: Final answer
    x = 14,662.41

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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.