Home / 19,957.80-27,541.98-11,005.65

Finding the Fourth Proportional to 19,957.80, 27,541.98 and 11,005.65

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Solution

The fourth proportional to 19,957.80, 27,541.98 and 11,005.65 is: 15,187.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957.80 : 27,541.98 = 11,005.65 : x
  2. Step 2: Convert to fraction form
    19,957.80/27,541.98 = 11,005.65/x
  3. Step 3: Cross multiply
    19,957.80x = 27,541.98 × 11,005.65
  4. Step 4: Simplify right side
    19,957.80x = 303,117,392.19
  5. Step 5: Solve for x
    x = 303,117,392.19/19,957.80
  6. Step 6: Final answer
    x = 15,187.92

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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.