Home / 22,345.75-30,837.95-12,275.13

Finding the Fourth Proportional to 22,345.75, 30,837.95 and 12,275.13

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Solution

The fourth proportional to 22,345.75, 30,837.95 and 12,275.13 is: 16,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,345.75 : 30,837.95 = 12,275.13 : x
  2. Step 2: Convert to fraction form
    22,345.75/30,837.95 = 12,275.13/x
  3. Step 3: Cross multiply
    22,345.75x = 30,837.95 × 12,275.13
  4. Step 4: Simplify right side
    22,345.75x = 378,539,845.18
  5. Step 5: Solve for x
    x = 378,539,845.18/22,345.75
  6. Step 6: Final answer
    x = 16,940.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.