Home / 19,157.28-28,722.06-12,901.80

Finding the Fourth Proportional to 19,157.28, 28,722.06 and 12,901.80

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Solution

The fourth proportional to 19,157.28, 28,722.06 and 12,901.80 is: 19,343.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.28 : 28,722.06 = 12,901.80 : x
  2. Step 2: Convert to fraction form
    19,157.28/28,722.06 = 12,901.80/x
  3. Step 3: Cross multiply
    19,157.28x = 28,722.06 × 12,901.80
  4. Step 4: Simplify right side
    19,157.28x = 370,566,273.71
  5. Step 5: Solve for x
    x = 370,566,273.71/19,157.28
  6. Step 6: Final answer
    x = 19,343.37

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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.