Home / 20,273.12-27,985.80-13,008.32

Finding the Fourth Proportional to 20,273.12, 27,985.80 and 13,008.32

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Solution

The fourth proportional to 20,273.12, 27,985.80 and 13,008.32 is: 17,957.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.12 : 27,985.80 = 13,008.32 : x
  2. Step 2: Convert to fraction form
    20,273.12/27,985.80 = 13,008.32/x
  3. Step 3: Cross multiply
    20,273.12x = 27,985.80 × 13,008.32
  4. Step 4: Simplify right side
    20,273.12x = 364,048,241.86
  5. Step 5: Solve for x
    x = 364,048,241.86/20,273.12
  6. Step 6: Final answer
    x = 17,957.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.