Home / 28,555.56-42,835-11,025.48

Finding the Fourth Proportional to 28,555.56, 42,835 and 11,025.48

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Solution

The fourth proportional to 28,555.56, 42,835 and 11,025.48 is: 16,538.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,555.56 : 42,835 = 11,025.48 : x
  2. Step 2: Convert to fraction form
    28,555.56/42,835 = 11,025.48/x
  3. Step 3: Cross multiply
    28,555.56x = 42,835 × 11,025.48
  4. Step 4: Simplify right side
    28,555.56x = 472,276,435.80
  5. Step 5: Solve for x
    x = 472,276,435.80/28,555.56
  6. Step 6: Final answer
    x = 16,538.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.