Home / 22,768.13-31,423.08-13,340.45

Finding the Fourth Proportional to 22,768.13, 31,423.08 and 13,340.45

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Solution

The fourth proportional to 22,768.13, 31,423.08 and 13,340.45 is: 18,411.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,768.13 : 31,423.08 = 13,340.45 : x
  2. Step 2: Convert to fraction form
    22,768.13/31,423.08 = 13,340.45/x
  3. Step 3: Cross multiply
    22,768.13x = 31,423.08 × 13,340.45
  4. Step 4: Simplify right side
    22,768.13x = 419,197,870.47
  5. Step 5: Solve for x
    x = 419,197,870.47/22,768.13
  6. Step 6: Final answer
    x = 18,411.61

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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.