Home / 21,513.40-32,268.96-6,720.64

Finding the Fourth Proportional to 21,513.40, 32,268.96 and 6,720.64

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Solution

The fourth proportional to 21,513.40, 32,268.96 and 6,720.64 is: 10,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,513.40 : 32,268.96 = 6,720.64 : x
  2. Step 2: Convert to fraction form
    21,513.40/32,268.96 = 6,720.64/x
  3. Step 3: Cross multiply
    21,513.40x = 32,268.96 × 6,720.64
  4. Step 4: Simplify right side
    21,513.40x = 216,868,063.33
  5. Step 5: Solve for x
    x = 216,868,063.33/21,513.40
  6. Step 6: Final answer
    x = 10,080.60

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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.