Home / 28,263.12-42,393.36-11,619.12

Finding the Fourth Proportional to 28,263.12, 42,393.36 and 11,619.12

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Solution

The fourth proportional to 28,263.12, 42,393.36 and 11,619.12 is: 17,428.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.12 : 42,393.36 = 11,619.12 : x
  2. Step 2: Convert to fraction form
    28,263.12/42,393.36 = 11,619.12/x
  3. Step 3: Cross multiply
    28,263.12x = 42,393.36 × 11,619.12
  4. Step 4: Simplify right side
    28,263.12x = 492,573,537.04
  5. Step 5: Solve for x
    x = 492,573,537.04/28,263.12
  6. Step 6: Final answer
    x = 17,428.14

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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.