Home / 19,983.84-27,563.40-15,259.92

Finding the Fourth Proportional to 19,983.84, 27,563.40 and 15,259.92

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Solution

The fourth proportional to 19,983.84, 27,563.40 and 15,259.92 is: 21,047.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.84 : 27,563.40 = 15,259.92 : x
  2. Step 2: Convert to fraction form
    19,983.84/27,563.40 = 15,259.92/x
  3. Step 3: Cross multiply
    19,983.84x = 27,563.40 × 15,259.92
  4. Step 4: Simplify right side
    19,983.84x = 420,615,278.93
  5. Step 5: Solve for x
    x = 420,615,278.93/19,983.84
  6. Step 6: Final answer
    x = 21,047.77

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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.