Home / 22,616.85-31,221.96-15,075.75

Finding the Fourth Proportional to 22,616.85, 31,221.96 and 15,075.75

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Solution

The fourth proportional to 22,616.85, 31,221.96 and 15,075.75 is: 20,811.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,616.85 : 31,221.96 = 15,075.75 : x
  2. Step 2: Convert to fraction form
    22,616.85/31,221.96 = 15,075.75/x
  3. Step 3: Cross multiply
    22,616.85x = 31,221.96 × 15,075.75
  4. Step 4: Simplify right side
    22,616.85x = 470,694,463.47
  5. Step 5: Solve for x
    x = 470,694,463.47/22,616.85
  6. Step 6: Final answer
    x = 20,811.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.