Home / 20,356.12-30,538.95-6,315.43

Finding the Fourth Proportional to 20,356.12, 30,538.95 and 6,315.43

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Solution

The fourth proportional to 20,356.12, 30,538.95 and 6,315.43 is: 9,474.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.12 : 30,538.95 = 6,315.43 : x
  2. Step 2: Convert to fraction form
    20,356.12/30,538.95 = 6,315.43/x
  3. Step 3: Cross multiply
    20,356.12x = 30,538.95 × 6,315.43
  4. Step 4: Simplify right side
    20,356.12x = 192,866,601.00
  5. Step 5: Solve for x
    x = 192,866,601.00/20,356.12
  6. Step 6: Final answer
    x = 9,474.62

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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.