Home / 31,584.08-47,376.12-8,210.36

Finding the Fourth Proportional to 31,584.08, 47,376.12 and 8,210.36

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Solution

The fourth proportional to 31,584.08, 47,376.12 and 8,210.36 is: 12,315.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,584.08 : 47,376.12 = 8,210.36 : x
  2. Step 2: Convert to fraction form
    31,584.08/47,376.12 = 8,210.36/x
  3. Step 3: Cross multiply
    31,584.08x = 47,376.12 × 8,210.36
  4. Step 4: Simplify right side
    31,584.08x = 388,975,000.60
  5. Step 5: Solve for x
    x = 388,975,000.60/31,584.08
  6. Step 6: Final answer
    x = 12,315.54

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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.