Home / 28,241.93-42,311.26-13,221.50

Finding the Fourth Proportional to 28,241.93, 42,311.26 and 13,221.50

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Solution

The fourth proportional to 28,241.93, 42,311.26 and 13,221.50 is: 19,808.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,241.93 : 42,311.26 = 13,221.50 : x
  2. Step 2: Convert to fraction form
    28,241.93/42,311.26 = 13,221.50/x
  3. Step 3: Cross multiply
    28,241.93x = 42,311.26 × 13,221.50
  4. Step 4: Simplify right side
    28,241.93x = 559,418,129.06
  5. Step 5: Solve for x
    x = 559,418,129.06/28,241.93
  6. Step 6: Final answer
    x = 19,808.07

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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.