Home / 28,220.21-38,936.15-17,459.92

Finding the Fourth Proportional to 28,220.21, 38,936.15 and 17,459.92

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Solution

The fourth proportional to 28,220.21, 38,936.15 and 17,459.92 is: 24,089.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,220.21 : 38,936.15 = 17,459.92 : x
  2. Step 2: Convert to fraction form
    28,220.21/38,936.15 = 17,459.92/x
  3. Step 3: Cross multiply
    28,220.21x = 38,936.15 × 17,459.92
  4. Step 4: Simplify right side
    28,220.21x = 679,821,879.47
  5. Step 5: Solve for x
    x = 679,821,879.47/28,220.21
  6. Step 6: Final answer
    x = 24,089.89

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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.