Home / 21,395.20-32,092.80-14,022.40

Finding the Fourth Proportional to 21,395.20, 32,092.80 and 14,022.40

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Solution

The fourth proportional to 21,395.20, 32,092.80 and 14,022.40 is: 21,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395.20 : 32,092.80 = 14,022.40 : x
  2. Step 2: Convert to fraction form
    21,395.20/32,092.80 = 14,022.40/x
  3. Step 3: Cross multiply
    21,395.20x = 32,092.80 × 14,022.40
  4. Step 4: Simplify right side
    21,395.20x = 450,018,078.72
  5. Step 5: Solve for x
    x = 450,018,078.72/21,395.20
  6. Step 6: Final answer
    x = 21,033.60

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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.