Home / 30,890.64-46,335.52-7,517.12

Finding the Fourth Proportional to 30,890.64, 46,335.52 and 7,517.12

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Solution

The fourth proportional to 30,890.64, 46,335.52 and 7,517.12 is: 11,275.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,890.64 : 46,335.52 = 7,517.12 : x
  2. Step 2: Convert to fraction form
    30,890.64/46,335.52 = 7,517.12/x
  3. Step 3: Cross multiply
    30,890.64x = 46,335.52 × 7,517.12
  4. Step 4: Simplify right side
    30,890.64x = 348,309,664.10
  5. Step 5: Solve for x
    x = 348,309,664.10/30,890.64
  6. Step 6: Final answer
    x = 11,275.57

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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.