Home / 20,834.37-28,746.99-12,339.18

Finding the Fourth Proportional to 20,834.37, 28,746.99 and 12,339.18

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Solution

The fourth proportional to 20,834.37, 28,746.99 and 12,339.18 is: 17,025.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.37 : 28,746.99 = 12,339.18 : x
  2. Step 2: Convert to fraction form
    20,834.37/28,746.99 = 12,339.18/x
  3. Step 3: Cross multiply
    20,834.37x = 28,746.99 × 12,339.18
  4. Step 4: Simplify right side
    20,834.37x = 354,714,284.07
  5. Step 5: Solve for x
    x = 354,714,284.07/20,834.37
  6. Step 6: Final answer
    x = 17,025.44

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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.