Home / 22,686.54-31,303.83-13,125.65

Finding the Fourth Proportional to 22,686.54, 31,303.83 and 13,125.65

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Solution

The fourth proportional to 22,686.54, 31,303.83 and 13,125.65 is: 18,111.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,686.54 : 31,303.83 = 13,125.65 : x
  2. Step 2: Convert to fraction form
    22,686.54/31,303.83 = 13,125.65/x
  3. Step 3: Cross multiply
    22,686.54x = 31,303.83 × 13,125.65
  4. Step 4: Simplify right side
    22,686.54x = 410,882,953.57
  5. Step 5: Solve for x
    x = 410,882,953.57/22,686.54
  6. Step 6: Final answer
    x = 18,111.31

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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.