Home / 19,809.51-27,337.17-10,857.35

Finding the Fourth Proportional to 19,809.51, 27,337.17 and 10,857.35

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Solution

The fourth proportional to 19,809.51, 27,337.17 and 10,857.35 is: 14,983.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.51 : 27,337.17 = 10,857.35 : x
  2. Step 2: Convert to fraction form
    19,809.51/27,337.17 = 10,857.35/x
  3. Step 3: Cross multiply
    19,809.51x = 27,337.17 × 10,857.35
  4. Step 4: Simplify right side
    19,809.51x = 296,809,086.01
  5. Step 5: Solve for x
    x = 296,809,086.01/19,809.51
  6. Step 6: Final answer
    x = 14,983.16

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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.