Home / 22,502.10-31,015.86-15,955.80

Finding the Fourth Proportional to 22,502.10, 31,015.86 and 15,955.80

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Solution

The fourth proportional to 22,502.10, 31,015.86 and 15,955.80 is: 21,992.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,502.10 : 31,015.86 = 15,955.80 : x
  2. Step 2: Convert to fraction form
    22,502.10/31,015.86 = 15,955.80/x
  3. Step 3: Cross multiply
    22,502.10x = 31,015.86 × 15,955.80
  4. Step 4: Simplify right side
    22,502.10x = 494,882,858.99
  5. Step 5: Solve for x
    x = 494,882,858.99/22,502.10
  6. Step 6: Final answer
    x = 21,992.74

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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.