Home / 28,365.48-42,550.38-8,645.58

Finding the Fourth Proportional to 28,365.48, 42,550.38 and 8,645.58

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Solution

The fourth proportional to 28,365.48, 42,550.38 and 8,645.58 is: 12,969.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,365.48 : 42,550.38 = 8,645.58 : x
  2. Step 2: Convert to fraction form
    28,365.48/42,550.38 = 8,645.58/x
  3. Step 3: Cross multiply
    28,365.48x = 42,550.38 × 8,645.58
  4. Step 4: Simplify right side
    28,365.48x = 367,872,714.32
  5. Step 5: Solve for x
    x = 367,872,714.32/28,365.48
  6. Step 6: Final answer
    x = 12,969.03

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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.