Home / 19,130.40-28,706.78-8,036.28

Finding the Fourth Proportional to 19,130.40, 28,706.78 and 8,036.28

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Solution

The fourth proportional to 19,130.40, 28,706.78 and 8,036.28 is: 12,059.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.40 : 28,706.78 = 8,036.28 : x
  2. Step 2: Convert to fraction form
    19,130.40/28,706.78 = 8,036.28/x
  3. Step 3: Cross multiply
    19,130.40x = 28,706.78 × 8,036.28
  4. Step 4: Simplify right side
    19,130.40x = 230,695,721.98
  5. Step 5: Solve for x
    x = 230,695,721.98/19,130.40
  6. Step 6: Final answer
    x = 12,059.12

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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.