Home / 20,315.61-30,462.12-6,271.65

Finding the Fourth Proportional to 20,315.61, 30,462.12 and 6,271.65

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Solution

The fourth proportional to 20,315.61, 30,462.12 and 6,271.65 is: 9,403.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,315.61 : 30,462.12 = 6,271.65 : x
  2. Step 2: Convert to fraction form
    20,315.61/30,462.12 = 6,271.65/x
  3. Step 3: Cross multiply
    20,315.61x = 30,462.12 × 6,271.65
  4. Step 4: Simplify right side
    20,315.61x = 191,047,754.90
  5. Step 5: Solve for x
    x = 191,047,754.90/20,315.61
  6. Step 6: Final answer
    x = 9,403.99

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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.