Home / 20,144.34-30,244.02-13,888.91

Finding the Fourth Proportional to 20,144.34, 30,244.02 and 13,888.91

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Solution

The fourth proportional to 20,144.34, 30,244.02 and 13,888.91 is: 20,852.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.34 : 30,244.02 = 13,888.91 : x
  2. Step 2: Convert to fraction form
    20,144.34/30,244.02 = 13,888.91/x
  3. Step 3: Cross multiply
    20,144.34x = 30,244.02 × 13,888.91
  4. Step 4: Simplify right side
    20,144.34x = 420,056,495.34
  5. Step 5: Solve for x
    x = 420,056,495.34/20,144.34
  6. Step 6: Final answer
    x = 20,852.33

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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.