Home / 20,285.04-30,412.98-9,186.02

Finding the Fourth Proportional to 20,285.04, 30,412.98 and 9,186.02

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Solution

The fourth proportional to 20,285.04, 30,412.98 and 9,186.02 is: 13,772.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,285.04 : 30,412.98 = 9,186.02 : x
  2. Step 2: Convert to fraction form
    20,285.04/30,412.98 = 9,186.02/x
  3. Step 3: Cross multiply
    20,285.04x = 30,412.98 × 9,186.02
  4. Step 4: Simplify right side
    20,285.04x = 279,374,090.47
  5. Step 5: Solve for x
    x = 279,374,090.47/20,285.04
  6. Step 6: Final answer
    x = 13,772.42

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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.