Home / 28,555.77-42,835.82-8,836.32

Finding the Fourth Proportional to 28,555.77, 42,835.82 and 8,836.32

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Solution

The fourth proportional to 28,555.77, 42,835.82 and 8,836.32 is: 13,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,555.77 : 42,835.82 = 8,836.32 : x
  2. Step 2: Convert to fraction form
    28,555.77/42,835.82 = 8,836.32/x
  3. Step 3: Cross multiply
    28,555.77x = 42,835.82 × 8,836.32
  4. Step 4: Simplify right side
    28,555.77x = 378,510,968.80
  5. Step 5: Solve for x
    x = 378,510,968.80/28,555.77
  6. Step 6: Final answer
    x = 13,255.15

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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.