Home / 18,422.54-27,607.65-14,189.78

Finding the Fourth Proportional to 18,422.54, 27,607.65 and 14,189.78

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Solution

The fourth proportional to 18,422.54, 27,607.65 and 14,189.78 is: 21,264.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,422.54 : 27,607.65 = 14,189.78 : x
  2. Step 2: Convert to fraction form
    18,422.54/27,607.65 = 14,189.78/x
  3. Step 3: Cross multiply
    18,422.54x = 27,607.65 × 14,189.78
  4. Step 4: Simplify right side
    18,422.54x = 391,746,341.78
  5. Step 5: Solve for x
    x = 391,746,341.78/18,422.54
  6. Step 6: Final answer
    x = 21,264.52

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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.