Home / 25,311.22-34,929.74-13,980.99

Finding the Fourth Proportional to 25,311.22, 34,929.74 and 13,980.99

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Solution

The fourth proportional to 25,311.22, 34,929.74 and 13,980.99 is: 19,293.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,311.22 : 34,929.74 = 13,980.99 : x
  2. Step 2: Convert to fraction form
    25,311.22/34,929.74 = 13,980.99/x
  3. Step 3: Cross multiply
    25,311.22x = 34,929.74 × 13,980.99
  4. Step 4: Simplify right side
    25,311.22x = 488,352,345.64
  5. Step 5: Solve for x
    x = 488,352,345.64/25,311.22
  6. Step 6: Final answer
    x = 19,293.91

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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.