Home / 19,957.96-27,535.30-12,889.16

Finding the Fourth Proportional to 19,957.96, 27,535.30 and 12,889.16

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Solution

The fourth proportional to 19,957.96, 27,535.30 and 12,889.16 is: 17,782.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957.96 : 27,535.30 = 12,889.16 : x
  2. Step 2: Convert to fraction form
    19,957.96/27,535.30 = 12,889.16/x
  3. Step 3: Cross multiply
    19,957.96x = 27,535.30 × 12,889.16
  4. Step 4: Simplify right side
    19,957.96x = 354,906,887.35
  5. Step 5: Solve for x
    x = 354,906,887.35/19,957.96
  6. Step 6: Final answer
    x = 17,782.72

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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.