Home / 18,624.79-27,955.55-13,680.55

Finding the Fourth Proportional to 18,624.79, 27,955.55 and 13,680.55

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Solution

The fourth proportional to 18,624.79, 27,955.55 and 13,680.55 is: 20,534.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,624.79 : 27,955.55 = 13,680.55 : x
  2. Step 2: Convert to fraction form
    18,624.79/27,955.55 = 13,680.55/x
  3. Step 3: Cross multiply
    18,624.79x = 27,955.55 × 13,680.55
  4. Step 4: Simplify right side
    18,624.79x = 382,447,299.55
  5. Step 5: Solve for x
    x = 382,447,299.55/18,624.79
  6. Step 6: Final answer
    x = 20,534.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.