Home / 20,057.90-27,665.73-13,340.16

Finding the Fourth Proportional to 20,057.90, 27,665.73 and 13,340.16

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Solution

The fourth proportional to 20,057.90, 27,665.73 and 13,340.16 is: 18,400.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.90 : 27,665.73 = 13,340.16 : x
  2. Step 2: Convert to fraction form
    20,057.90/27,665.73 = 13,340.16/x
  3. Step 3: Cross multiply
    20,057.90x = 27,665.73 × 13,340.16
  4. Step 4: Simplify right side
    20,057.90x = 369,065,264.72
  5. Step 5: Solve for x
    x = 369,065,264.72/20,057.90
  6. Step 6: Final answer
    x = 18,400.00

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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.