Home / 20,459.24-28,111.39-16,260.20

Finding the Fourth Proportional to 20,459.24, 28,111.39 and 16,260.20

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Solution

The fourth proportional to 20,459.24, 28,111.39 and 16,260.20 is: 22,341.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,459.24 : 28,111.39 = 16,260.20 : x
  2. Step 2: Convert to fraction form
    20,459.24/28,111.39 = 16,260.20/x
  3. Step 3: Cross multiply
    20,459.24x = 28,111.39 × 16,260.20
  4. Step 4: Simplify right side
    20,459.24x = 457,096,823.68
  5. Step 5: Solve for x
    x = 457,096,823.68/20,459.24
  6. Step 6: Final answer
    x = 22,341.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.