Home / 22,203.51-30,639.93-12,132.30

Finding the Fourth Proportional to 22,203.51, 30,639.93 and 12,132.30

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Solution

The fourth proportional to 22,203.51, 30,639.93 and 12,132.30 is: 16,742.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,203.51 : 30,639.93 = 12,132.30 : x
  2. Step 2: Convert to fraction form
    22,203.51/30,639.93 = 12,132.30/x
  3. Step 3: Cross multiply
    22,203.51x = 30,639.93 × 12,132.30
  4. Step 4: Simplify right side
    22,203.51x = 371,732,822.74
  5. Step 5: Solve for x
    x = 371,732,822.74/22,203.51
  6. Step 6: Final answer
    x = 16,742.07

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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.