Home / 28,519.30-42,783.80-8,794.18

Finding the Fourth Proportional to 28,519.30, 42,783.80 and 8,794.18

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Solution

The fourth proportional to 28,519.30, 42,783.80 and 8,794.18 is: 13,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.30 : 42,783.80 = 8,794.18 : x
  2. Step 2: Convert to fraction form
    28,519.30/42,783.80 = 8,794.18/x
  3. Step 3: Cross multiply
    28,519.30x = 42,783.80 × 8,794.18
  4. Step 4: Simplify right side
    28,519.30x = 376,248,438.28
  5. Step 5: Solve for x
    x = 376,248,438.28/28,519.30
  6. Step 6: Final answer
    x = 13,192.77

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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.