Home / 28,970.10-43,455.15-9,249.30

Finding the Fourth Proportional to 28,970.10, 43,455.15 and 9,249.30

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Solution

The fourth proportional to 28,970.10, 43,455.15 and 9,249.30 is: 13,873.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,970.10 : 43,455.15 = 9,249.30 : x
  2. Step 2: Convert to fraction form
    28,970.10/43,455.15 = 9,249.30/x
  3. Step 3: Cross multiply
    28,970.10x = 43,455.15 × 9,249.30
  4. Step 4: Simplify right side
    28,970.10x = 401,929,718.90
  5. Step 5: Solve for x
    x = 401,929,718.90/28,970.10
  6. Step 6: Final answer
    x = 13,873.95

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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.