Home / 28,459.04-42,694.88-8,739.32

Finding the Fourth Proportional to 28,459.04, 42,694.88 and 8,739.32

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Solution

The fourth proportional to 28,459.04, 42,694.88 and 8,739.32 is: 13,110.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459.04 : 42,694.88 = 8,739.32 : x
  2. Step 2: Convert to fraction form
    28,459.04/42,694.88 = 8,739.32/x
  3. Step 3: Cross multiply
    28,459.04x = 42,694.88 × 8,739.32
  4. Step 4: Simplify right side
    28,459.04x = 373,124,218.68
  5. Step 5: Solve for x
    x = 373,124,218.68/28,459.04
  6. Step 6: Final answer
    x = 13,110.92

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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.