Home / 19,316.53-28,993.49-9,328.28

Finding the Fourth Proportional to 19,316.53, 28,993.49 and 9,328.28

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Solution

The fourth proportional to 19,316.53, 28,993.49 and 9,328.28 is: 14,001.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,316.53 : 28,993.49 = 9,328.28 : x
  2. Step 2: Convert to fraction form
    19,316.53/28,993.49 = 9,328.28/x
  3. Step 3: Cross multiply
    19,316.53x = 28,993.49 × 9,328.28
  4. Step 4: Simplify right side
    19,316.53x = 270,459,373.12
  5. Step 5: Solve for x
    x = 270,459,373.12/19,316.53
  6. Step 6: Final answer
    x = 14,001.44

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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.