Home / 15,231.51-22,815.84-13,955.76

Finding the Fourth Proportional to 15,231.51, 22,815.84 and 13,955.76

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Solution

The fourth proportional to 15,231.51, 22,815.84 and 13,955.76 is: 20,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,231.51 : 22,815.84 = 13,955.76 : x
  2. Step 2: Convert to fraction form
    15,231.51/22,815.84 = 13,955.76/x
  3. Step 3: Cross multiply
    15,231.51x = 22,815.84 × 13,955.76
  4. Step 4: Simplify right side
    15,231.51x = 318,412,387.24
  5. Step 5: Solve for x
    x = 318,412,387.24/15,231.51
  6. Step 6: Final answer
    x = 20,904.85

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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.