Home / 28,032.04-42,043.20-8,305.30

Finding the Fourth Proportional to 28,032.04, 42,043.20 and 8,305.30

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Solution

The fourth proportional to 28,032.04, 42,043.20 and 8,305.30 is: 12,456.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032.04 : 42,043.20 = 8,305.30 : x
  2. Step 2: Convert to fraction form
    28,032.04/42,043.20 = 8,305.30/x
  3. Step 3: Cross multiply
    28,032.04x = 42,043.20 × 8,305.30
  4. Step 4: Simplify right side
    28,032.04x = 349,181,388.96
  5. Step 5: Solve for x
    x = 349,181,388.96/28,032.04
  6. Step 6: Final answer
    x = 12,456.51

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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.