Home / 20,548.32-30,810.88-13,983.36

Finding the Fourth Proportional to 20,548.32, 30,810.88 and 13,983.36

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Solution

The fourth proportional to 20,548.32, 30,810.88 and 13,983.36 is: 20,967.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548.32 : 30,810.88 = 13,983.36 : x
  2. Step 2: Convert to fraction form
    20,548.32/30,810.88 = 13,983.36/x
  3. Step 3: Cross multiply
    20,548.32x = 30,810.88 × 13,983.36
  4. Step 4: Simplify right side
    20,548.32x = 430,839,626.96
  5. Step 5: Solve for x
    x = 430,839,626.96/20,548.32
  6. Step 6: Final answer
    x = 20,967.15

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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.