Home / 20,459.04-28,174.96-18,425.12

Finding the Fourth Proportional to 20,459.04, 28,174.96 and 18,425.12

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Solution

The fourth proportional to 20,459.04, 28,174.96 and 18,425.12 is: 25,373.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,459.04 : 28,174.96 = 18,425.12 : x
  2. Step 2: Convert to fraction form
    20,459.04/28,174.96 = 18,425.12/x
  3. Step 3: Cross multiply
    20,459.04x = 28,174.96 × 18,425.12
  4. Step 4: Simplify right side
    20,459.04x = 519,127,019.00
  5. Step 5: Solve for x
    x = 519,127,019.00/20,459.04
  6. Step 6: Final answer
    x = 25,373.97

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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.