Home / 22,445.84-30,975.30-12,886.04

Finding the Fourth Proportional to 22,445.84, 30,975.30 and 12,886.04

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Solution

The fourth proportional to 22,445.84, 30,975.30 and 12,886.04 is: 17,782.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,445.84 : 30,975.30 = 12,886.04 : x
  2. Step 2: Convert to fraction form
    22,445.84/30,975.30 = 12,886.04/x
  3. Step 3: Cross multiply
    22,445.84x = 30,975.30 × 12,886.04
  4. Step 4: Simplify right side
    22,445.84x = 399,148,954.81
  5. Step 5: Solve for x
    x = 399,148,954.81/22,445.84
  6. Step 6: Final answer
    x = 17,782.76

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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.