Home / 20,267.81-27,955.49-18,594.76

Finding the Fourth Proportional to 20,267.81, 27,955.49 and 18,594.76

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Solution

The fourth proportional to 20,267.81, 27,955.49 and 18,594.76 is: 25,647.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,267.81 : 27,955.49 = 18,594.76 : x
  2. Step 2: Convert to fraction form
    20,267.81/27,955.49 = 18,594.76/x
  3. Step 3: Cross multiply
    20,267.81x = 27,955.49 × 18,594.76
  4. Step 4: Simplify right side
    20,267.81x = 519,825,487.45
  5. Step 5: Solve for x
    x = 519,825,487.45/20,267.81
  6. Step 6: Final answer
    x = 25,647.84

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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.