Home / 20,836.85-28,724.96-14,858.15

Finding the Fourth Proportional to 20,836.85, 28,724.96 and 14,858.15

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Solution

The fourth proportional to 20,836.85, 28,724.96 and 14,858.15 is: 20,482.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836.85 : 28,724.96 = 14,858.15 : x
  2. Step 2: Convert to fraction form
    20,836.85/28,724.96 = 14,858.15/x
  3. Step 3: Cross multiply
    20,836.85x = 28,724.96 × 14,858.15
  4. Step 4: Simplify right side
    20,836.85x = 426,799,657.94
  5. Step 5: Solve for x
    x = 426,799,657.94/20,836.85
  6. Step 6: Final answer
    x = 20,482.93

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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.