Home / 20,855.41-31,204.63-14,627.58

Finding the Fourth Proportional to 20,855.41, 31,204.63 and 14,627.58

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Solution

The fourth proportional to 20,855.41, 31,204.63 and 14,627.58 is: 21,886.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,855.41 : 31,204.63 = 14,627.58 : x
  2. Step 2: Convert to fraction form
    20,855.41/31,204.63 = 14,627.58/x
  3. Step 3: Cross multiply
    20,855.41x = 31,204.63 × 14,627.58
  4. Step 4: Simplify right side
    20,855.41x = 456,448,221.70
  5. Step 5: Solve for x
    x = 456,448,221.70/20,855.41
  6. Step 6: Final answer
    x = 21,886.32

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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.