Home / 19,935.45-27,480.47-12,852.81

Finding the Fourth Proportional to 19,935.45, 27,480.47 and 12,852.81

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Solution

The fourth proportional to 19,935.45, 27,480.47 and 12,852.81 is: 17,717.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.45 : 27,480.47 = 12,852.81 : x
  2. Step 2: Convert to fraction form
    19,935.45/27,480.47 = 12,852.81/x
  3. Step 3: Cross multiply
    19,935.45x = 27,480.47 × 12,852.81
  4. Step 4: Simplify right side
    19,935.45x = 353,201,195.36
  5. Step 5: Solve for x
    x = 353,201,195.36/19,935.45
  6. Step 6: Final answer
    x = 17,717.24

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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.