Home / 19,956.27-29,955.22-8,870.82

Finding the Fourth Proportional to 19,956.27, 29,955.22 and 8,870.82

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Solution

The fourth proportional to 19,956.27, 29,955.22 and 8,870.82 is: 13,315.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956.27 : 29,955.22 = 8,870.82 : x
  2. Step 2: Convert to fraction form
    19,956.27/29,955.22 = 8,870.82/x
  3. Step 3: Cross multiply
    19,956.27x = 29,955.22 × 8,870.82
  4. Step 4: Simplify right side
    19,956.27x = 265,727,230.17
  5. Step 5: Solve for x
    x = 265,727,230.17/19,956.27
  6. Step 6: Final answer
    x = 13,315.47

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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.