Home / 20,476.05-30,711.63-12,047.59

Finding the Fourth Proportional to 20,476.05, 30,711.63 and 12,047.59

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Solution

The fourth proportional to 20,476.05, 30,711.63 and 12,047.59 is: 18,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,476.05 : 30,711.63 = 12,047.59 : x
  2. Step 2: Convert to fraction form
    20,476.05/30,711.63 = 12,047.59/x
  3. Step 3: Cross multiply
    20,476.05x = 30,711.63 × 12,047.59
  4. Step 4: Simplify right side
    20,476.05x = 370,001,210.04
  5. Step 5: Solve for x
    x = 370,001,210.04/20,476.05
  6. Step 6: Final answer
    x = 18,069.95

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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.