Home / 22,360.02-30,856.59-12,928.38

Finding the Fourth Proportional to 22,360.02, 30,856.59 and 12,928.38

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Solution

The fourth proportional to 22,360.02, 30,856.59 and 12,928.38 is: 17,841.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,360.02 : 30,856.59 = 12,928.38 : x
  2. Step 2: Convert to fraction form
    22,360.02/30,856.59 = 12,928.38/x
  3. Step 3: Cross multiply
    22,360.02x = 30,856.59 × 12,928.38
  4. Step 4: Simplify right side
    22,360.02x = 398,925,721.02
  5. Step 5: Solve for x
    x = 398,925,721.02/22,360.02
  6. Step 6: Final answer
    x = 17,841.03

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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.