Home / 26,985.20-37,224.60-15,805.04

Finding the Fourth Proportional to 26,985.20, 37,224.60 and 15,805.04

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Solution

The fourth proportional to 26,985.20, 37,224.60 and 15,805.04 is: 21,802.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,985.20 : 37,224.60 = 15,805.04 : x
  2. Step 2: Convert to fraction form
    26,985.20/37,224.60 = 15,805.04/x
  3. Step 3: Cross multiply
    26,985.20x = 37,224.60 × 15,805.04
  4. Step 4: Simplify right side
    26,985.20x = 588,336,291.98
  5. Step 5: Solve for x
    x = 588,336,291.98/26,985.20
  6. Step 6: Final answer
    x = 21,802.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.