Home / 20,800.74-28,726.00-13,250.46

Finding the Fourth Proportional to 20,800.74, 28,726.00 and 13,250.46

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Solution

The fourth proportional to 20,800.74, 28,726.00 and 13,250.46 is: 18,299.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800.74 : 28,726.00 = 13,250.46 : x
  2. Step 2: Convert to fraction form
    20,800.74/28,726.00 = 13,250.46/x
  3. Step 3: Cross multiply
    20,800.74x = 28,726.00 × 13,250.46
  4. Step 4: Simplify right side
    20,800.74x = 380,632,680.83
  5. Step 5: Solve for x
    x = 380,632,680.83/20,800.74
  6. Step 6: Final answer
    x = 18,299.00

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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.