Home / 20,231.07-30,347.97-9,703.40

Finding the Fourth Proportional to 20,231.07, 30,347.97 and 9,703.40

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Solution

The fourth proportional to 20,231.07, 30,347.97 and 9,703.40 is: 14,555.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.07 : 30,347.97 = 9,703.40 : x
  2. Step 2: Convert to fraction form
    20,231.07/30,347.97 = 9,703.40/x
  3. Step 3: Cross multiply
    20,231.07x = 30,347.97 × 9,703.40
  4. Step 4: Simplify right side
    20,231.07x = 294,478,303.97
  5. Step 5: Solve for x
    x = 294,478,303.97/20,231.07
  6. Step 6: Final answer
    x = 14,555.75

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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.