Home / 28,247.04-42,362.48-11,380

Finding the Fourth Proportional to 28,247.04, 42,362.48 and 11,380

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Solution

The fourth proportional to 28,247.04, 42,362.48 and 11,380 is: 17,066.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.04 : 42,362.48 = 11,380 : x
  2. Step 2: Convert to fraction form
    28,247.04/42,362.48 = 11,380/x
  3. Step 3: Cross multiply
    28,247.04x = 42,362.48 × 11,380
  4. Step 4: Simplify right side
    28,247.04x = 482,085,022.40
  5. Step 5: Solve for x
    x = 482,085,022.40/28,247.04
  6. Step 6: Final answer
    x = 17,066.74

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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.