Home / 14,269.20-21,403.80-13,977.60

Finding the Fourth Proportional to 14,269.20, 21,403.80 and 13,977.60

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Solution

The fourth proportional to 14,269.20, 21,403.80 and 13,977.60 is: 20,966.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,269.20 : 21,403.80 = 13,977.60 : x
  2. Step 2: Convert to fraction form
    14,269.20/21,403.80 = 13,977.60/x
  3. Step 3: Cross multiply
    14,269.20x = 21,403.80 × 13,977.60
  4. Step 4: Simplify right side
    14,269.20x = 299,173,754.88
  5. Step 5: Solve for x
    x = 299,173,754.88/14,269.20
  6. Step 6: Final answer
    x = 20,966.40

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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.