Home / 18,422.15-27,607.07-14,189.40

Finding the Fourth Proportional to 18,422.15, 27,607.07 and 14,189.40

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Solution

The fourth proportional to 18,422.15, 27,607.07 and 14,189.40 is: 21,263.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,422.15 : 27,607.07 = 14,189.40 : x
  2. Step 2: Convert to fraction form
    18,422.15/27,607.07 = 14,189.40/x
  3. Step 3: Cross multiply
    18,422.15x = 27,607.07 × 14,189.40
  4. Step 4: Simplify right side
    18,422.15x = 391,727,688.11
  5. Step 5: Solve for x
    x = 391,727,688.11/18,422.15
  6. Step 6: Final answer
    x = 21,263.95

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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.