Home / 31,613.68-47,384.04-11,879.62

Finding the Fourth Proportional to 31,613.68, 47,384.04 and 11,879.62

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Solution

The fourth proportional to 31,613.68, 47,384.04 and 11,879.62 is: 17,805.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,613.68 : 47,384.04 = 11,879.62 : x
  2. Step 2: Convert to fraction form
    31,613.68/47,384.04 = 11,879.62/x
  3. Step 3: Cross multiply
    31,613.68x = 47,384.04 × 11,879.62
  4. Step 4: Simplify right side
    31,613.68x = 562,904,389.26
  5. Step 5: Solve for x
    x = 562,904,389.26/31,613.68
  6. Step 6: Final answer
    x = 17,805.72

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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.