Home / 20,903.84-31,339.35-14,310.03

Finding the Fourth Proportional to 20,903.84, 31,339.35 and 14,310.03

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Solution

The fourth proportional to 20,903.84, 31,339.35 and 14,310.03 is: 21,453.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.84 : 31,339.35 = 14,310.03 : x
  2. Step 2: Convert to fraction form
    20,903.84/31,339.35 = 14,310.03/x
  3. Step 3: Cross multiply
    20,903.84x = 31,339.35 × 14,310.03
  4. Step 4: Simplify right side
    20,903.84x = 448,467,038.68
  5. Step 5: Solve for x
    x = 448,467,038.68/20,903.84
  6. Step 6: Final answer
    x = 21,453.82

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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.