Home / 34,405.66-47,479.44-20,976.06

Finding the Fourth Proportional to 34,405.66, 47,479.44 and 20,976.06

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Solution

The fourth proportional to 34,405.66, 47,479.44 and 20,976.06 is: 28,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,405.66 : 47,479.44 = 20,976.06 : x
  2. Step 2: Convert to fraction form
    34,405.66/47,479.44 = 20,976.06/x
  3. Step 3: Cross multiply
    34,405.66x = 47,479.44 × 20,976.06
  4. Step 4: Simplify right side
    34,405.66x = 995,931,582.21
  5. Step 5: Solve for x
    x = 995,931,582.21/34,405.66
  6. Step 6: Final answer
    x = 28,946.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.