Home / 21,455.12-32,171.16-7,602.32

Finding the Fourth Proportional to 21,455.12, 32,171.16 and 7,602.32

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Solution

The fourth proportional to 21,455.12, 32,171.16 and 7,602.32 is: 11,399.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.12 : 32,171.16 = 7,602.32 : x
  2. Step 2: Convert to fraction form
    21,455.12/32,171.16 = 7,602.32/x
  3. Step 3: Cross multiply
    21,455.12x = 32,171.16 × 7,602.32
  4. Step 4: Simplify right side
    21,455.12x = 244,575,453.09
  5. Step 5: Solve for x
    x = 244,575,453.09/21,455.12
  6. Step 6: Final answer
    x = 11,399.40

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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.