Home / 20,287.44-28,014.48-12,746.84

Finding the Fourth Proportional to 20,287.44, 28,014.48 and 12,746.84

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Solution

The fourth proportional to 20,287.44, 28,014.48 and 12,746.84 is: 17,601.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287.44 : 28,014.48 = 12,746.84 : x
  2. Step 2: Convert to fraction form
    20,287.44/28,014.48 = 12,746.84/x
  3. Step 3: Cross multiply
    20,287.44x = 28,014.48 × 12,746.84
  4. Step 4: Simplify right side
    20,287.44x = 357,095,954.17
  5. Step 5: Solve for x
    x = 357,095,954.17/20,287.44
  6. Step 6: Final answer
    x = 17,601.82

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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.