Home / 14,320.20-21,481.90-4,459.40

Finding the Fourth Proportional to 14,320.20, 21,481.90 and 4,459.40

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Solution

The fourth proportional to 14,320.20, 21,481.90 and 4,459.40 is: 6,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,320.20 : 21,481.90 = 4,459.40 : x
  2. Step 2: Convert to fraction form
    14,320.20/21,481.90 = 4,459.40/x
  3. Step 3: Cross multiply
    14,320.20x = 21,481.90 × 4,459.40
  4. Step 4: Simplify right side
    14,320.20x = 95,796,384.86
  5. Step 5: Solve for x
    x = 95,796,384.86/14,320.20
  6. Step 6: Final answer
    x = 6,689.60

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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.