Home / 21,453.20-32,201.40-10,368.80

Finding the Fourth Proportional to 21,453.20, 32,201.40 and 10,368.80

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Solution

The fourth proportional to 21,453.20, 32,201.40 and 10,368.80 is: 15,563.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.20 : 32,201.40 = 10,368.80 : x
  2. Step 2: Convert to fraction form
    21,453.20/32,201.40 = 10,368.80/x
  3. Step 3: Cross multiply
    21,453.20x = 32,201.40 × 10,368.80
  4. Step 4: Simplify right side
    21,453.20x = 333,889,876.32
  5. Step 5: Solve for x
    x = 333,889,876.32/21,453.20
  6. Step 6: Final answer
    x = 15,563.64

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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.