Home / 21,957.57-30,303.18-12,525.93

Finding the Fourth Proportional to 21,957.57, 30,303.18 and 12,525.93

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Solution

The fourth proportional to 21,957.57, 30,303.18 and 12,525.93 is: 17,286.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.57 : 30,303.18 = 12,525.93 : x
  2. Step 2: Convert to fraction form
    21,957.57/30,303.18 = 12,525.93/x
  3. Step 3: Cross multiply
    21,957.57x = 30,303.18 × 12,525.93
  4. Step 4: Simplify right side
    21,957.57x = 379,575,511.46
  5. Step 5: Solve for x
    x = 379,575,511.46/21,957.57
  6. Step 6: Final answer
    x = 17,286.77

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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.