Home / 19,860.84-27,380.58-19,247.40

Finding the Fourth Proportional to 19,860.84, 27,380.58 and 19,247.40

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Solution

The fourth proportional to 19,860.84, 27,380.58 and 19,247.40 is: 26,534.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.84 : 27,380.58 = 19,247.40 : x
  2. Step 2: Convert to fraction form
    19,860.84/27,380.58 = 19,247.40/x
  3. Step 3: Cross multiply
    19,860.84x = 27,380.58 × 19,247.40
  4. Step 4: Simplify right side
    19,860.84x = 527,004,975.49
  5. Step 5: Solve for x
    x = 527,004,975.49/19,860.84
  6. Step 6: Final answer
    x = 26,534.88

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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.