Home / 28,122.10-42,185.60-11,483.26

Finding the Fourth Proportional to 28,122.10, 42,185.60 and 11,483.26

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Solution

The fourth proportional to 28,122.10, 42,185.60 and 11,483.26 is: 17,225.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.10 : 42,185.60 = 11,483.26 : x
  2. Step 2: Convert to fraction form
    28,122.10/42,185.60 = 11,483.26/x
  3. Step 3: Cross multiply
    28,122.10x = 42,185.60 × 11,483.26
  4. Step 4: Simplify right side
    28,122.10x = 484,428,213.06
  5. Step 5: Solve for x
    x = 484,428,213.06/28,122.10
  6. Step 6: Final answer
    x = 17,225.89

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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.