Home / 20,501.74-28,292.61-12,001.99

Finding the Fourth Proportional to 20,501.74, 28,292.61 and 12,001.99

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Solution

The fourth proportional to 20,501.74, 28,292.61 and 12,001.99 is: 16,562.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.74 : 28,292.61 = 12,001.99 : x
  2. Step 2: Convert to fraction form
    20,501.74/28,292.61 = 12,001.99/x
  3. Step 3: Cross multiply
    20,501.74x = 28,292.61 × 12,001.99
  4. Step 4: Simplify right side
    20,501.74x = 339,567,622.29
  5. Step 5: Solve for x
    x = 339,567,622.29/20,501.74
  6. Step 6: Final answer
    x = 16,562.87

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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.