Home / 20,354.94-30,534.35-6,315.12

Finding the Fourth Proportional to 20,354.94, 30,534.35 and 6,315.12

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Solution

The fourth proportional to 20,354.94, 30,534.35 and 6,315.12 is: 9,473.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,354.94 : 30,534.35 = 6,315.12 : x
  2. Step 2: Convert to fraction form
    20,354.94/30,534.35 = 6,315.12/x
  3. Step 3: Cross multiply
    20,354.94x = 30,534.35 × 6,315.12
  4. Step 4: Simplify right side
    20,354.94x = 192,828,052.80
  5. Step 5: Solve for x
    x = 192,828,052.80/20,354.94
  6. Step 6: Final answer
    x = 9,473.28

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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.