Home / 26,415.90-36,455.04-15,803.46

Finding the Fourth Proportional to 26,415.90, 36,455.04 and 15,803.46

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Solution

The fourth proportional to 26,415.90, 36,455.04 and 15,803.46 is: 21,809.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,415.90 : 36,455.04 = 15,803.46 : x
  2. Step 2: Convert to fraction form
    26,415.90/36,455.04 = 15,803.46/x
  3. Step 3: Cross multiply
    26,415.90x = 36,455.04 × 15,803.46
  4. Step 4: Simplify right side
    26,415.90x = 576,115,766.44
  5. Step 5: Solve for x
    x = 576,115,766.44/26,415.90
  6. Step 6: Final answer
    x = 21,809.43

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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.