Home / 19,295.48-28,943.22-12,720.14

Finding the Fourth Proportional to 19,295.48, 28,943.22 and 12,720.14

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Solution

The fourth proportional to 19,295.48, 28,943.22 and 12,720.14 is: 19,080.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,295.48 : 28,943.22 = 12,720.14 : x
  2. Step 2: Convert to fraction form
    19,295.48/28,943.22 = 12,720.14/x
  3. Step 3: Cross multiply
    19,295.48x = 28,943.22 × 12,720.14
  4. Step 4: Simplify right side
    19,295.48x = 368,161,665.73
  5. Step 5: Solve for x
    x = 368,161,665.73/19,295.48
  6. Step 6: Final answer
    x = 19,080.21

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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.