Home / 19,329.50-28,985.66-9,339.18

Finding the Fourth Proportional to 19,329.50, 28,985.66 and 9,339.18

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Solution

The fourth proportional to 19,329.50, 28,985.66 and 9,339.18 is: 14,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,329.50 : 28,985.66 = 9,339.18 : x
  2. Step 2: Convert to fraction form
    19,329.50/28,985.66 = 9,339.18/x
  3. Step 3: Cross multiply
    19,329.50x = 28,985.66 × 9,339.18
  4. Step 4: Simplify right side
    19,329.50x = 270,702,296.16
  5. Step 5: Solve for x
    x = 270,702,296.16/19,329.50
  6. Step 6: Final answer
    x = 14,004.62

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1.5x scale

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.