Home / 28,929.12-43,396.88-9,200.76

Finding the Fourth Proportional to 28,929.12, 43,396.88 and 9,200.76

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Solution

The fourth proportional to 28,929.12, 43,396.88 and 9,200.76 is: 13,802.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,929.12 : 43,396.88 = 9,200.76 : x
  2. Step 2: Convert to fraction form
    28,929.12/43,396.88 = 9,200.76/x
  3. Step 3: Cross multiply
    28,929.12x = 43,396.88 × 9,200.76
  4. Step 4: Simplify right side
    28,929.12x = 399,284,277.63
  5. Step 5: Solve for x
    x = 399,284,277.63/28,929.12
  6. Step 6: Final answer
    x = 13,802.16

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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.