Home / 14,200.40-21,300.60-3,670.40

Finding the Fourth Proportional to 14,200.40, 21,300.60 and 3,670.40

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Solution

The fourth proportional to 14,200.40, 21,300.60 and 3,670.40 is: 5,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,200.40 : 21,300.60 = 3,670.40 : x
  2. Step 2: Convert to fraction form
    14,200.40/21,300.60 = 3,670.40/x
  3. Step 3: Cross multiply
    14,200.40x = 21,300.60 × 3,670.40
  4. Step 4: Simplify right side
    14,200.40x = 78,181,722.24
  5. Step 5: Solve for x
    x = 78,181,722.24/14,200.40
  6. Step 6: Final answer
    x = 5,505.60

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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.