Home / 22,453.50-30,985.42-12,382.87

Finding the Fourth Proportional to 22,453.50, 30,985.42 and 12,382.87

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Solution

The fourth proportional to 22,453.50, 30,985.42 and 12,382.87 is: 17,088.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,453.50 : 30,985.42 = 12,382.87 : x
  2. Step 2: Convert to fraction form
    22,453.50/30,985.42 = 12,382.87/x
  3. Step 3: Cross multiply
    22,453.50x = 30,985.42 × 12,382.87
  4. Step 4: Simplify right side
    22,453.50x = 383,688,365.84
  5. Step 5: Solve for x
    x = 383,688,365.84/22,453.50
  6. Step 6: Final answer
    x = 17,088.13

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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.