Home / 19,140.26-28,706.27-5,990.90

Finding the Fourth Proportional to 19,140.26, 28,706.27 and 5,990.90

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Solution

The fourth proportional to 19,140.26, 28,706.27 and 5,990.90 is: 8,985.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.26 : 28,706.27 = 5,990.90 : x
  2. Step 2: Convert to fraction form
    19,140.26/28,706.27 = 5,990.90/x
  3. Step 3: Cross multiply
    19,140.26x = 28,706.27 × 5,990.90
  4. Step 4: Simplify right side
    19,140.26x = 171,976,219.46
  5. Step 5: Solve for x
    x = 171,976,219.46/19,140.26
  6. Step 6: Final answer
    x = 8,985.05

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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.