Home / 20,777.08-28,657.82-14,059.76

Finding the Fourth Proportional to 20,777.08, 28,657.82 and 14,059.76

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Solution

The fourth proportional to 20,777.08, 28,657.82 and 14,059.76 is: 19,392.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777.08 : 28,657.82 = 14,059.76 : x
  2. Step 2: Convert to fraction form
    20,777.08/28,657.82 = 14,059.76/x
  3. Step 3: Cross multiply
    20,777.08x = 28,657.82 × 14,059.76
  4. Step 4: Simplify right side
    20,777.08x = 402,922,071.32
  5. Step 5: Solve for x
    x = 402,922,071.32/20,777.08
  6. Step 6: Final answer
    x = 19,392.62

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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.