Home / 25,162.80-37,721.88-12,666.48

Finding the Fourth Proportional to 25,162.80, 37,721.88 and 12,666.48

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Solution

The fourth proportional to 25,162.80, 37,721.88 and 12,666.48 is: 18,988.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,162.80 : 37,721.88 = 12,666.48 : x
  2. Step 2: Convert to fraction form
    25,162.80/37,721.88 = 12,666.48/x
  3. Step 3: Cross multiply
    25,162.80x = 37,721.88 × 12,666.48
  4. Step 4: Simplify right side
    25,162.80x = 477,803,438.58
  5. Step 5: Solve for x
    x = 477,803,438.58/25,162.80
  6. Step 6: Final answer
    x = 18,988.48

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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.