Home / 28,455.12-42,682.62-9,735.32

Finding the Fourth Proportional to 28,455.12, 42,682.62 and 9,735.32

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Solution

The fourth proportional to 28,455.12, 42,682.62 and 9,735.32 is: 14,602.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,455.12 : 42,682.62 = 9,735.32 : x
  2. Step 2: Convert to fraction form
    28,455.12/42,682.62 = 9,735.32/x
  3. Step 3: Cross multiply
    28,455.12x = 42,682.62 × 9,735.32
  4. Step 4: Simplify right side
    28,455.12x = 415,528,964.14
  5. Step 5: Solve for x
    x = 415,528,964.14/28,455.12
  6. Step 6: Final answer
    x = 14,602.96

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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.