Home / 20,548.16-30,822.24-4,965.78

Finding the Fourth Proportional to 20,548.16, 30,822.24 and 4,965.78

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Solution

The fourth proportional to 20,548.16, 30,822.24 and 4,965.78 is: 7,448.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548.16 : 30,822.24 = 4,965.78 : x
  2. Step 2: Convert to fraction form
    20,548.16/30,822.24 = 4,965.78/x
  3. Step 3: Cross multiply
    20,548.16x = 30,822.24 × 4,965.78
  4. Step 4: Simplify right side
    20,548.16x = 153,056,462.95
  5. Step 5: Solve for x
    x = 153,056,462.95/20,548.16
  6. Step 6: Final answer
    x = 7,448.67

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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.