Home / 29,315.88-40,455.84-15,887.48

Finding the Fourth Proportional to 29,315.88, 40,455.84 and 15,887.48

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Solution

The fourth proportional to 29,315.88, 40,455.84 and 15,887.48 is: 21,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,315.88 : 40,455.84 = 15,887.48 : x
  2. Step 2: Convert to fraction form
    29,315.88/40,455.84 = 15,887.48/x
  3. Step 3: Cross multiply
    29,315.88x = 40,455.84 × 15,887.48
  4. Step 4: Simplify right side
    29,315.88x = 642,741,348.88
  5. Step 5: Solve for x
    x = 642,741,348.88/29,315.88
  6. Step 6: Final answer
    x = 21,924.68

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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.