Home / 18,280.64-27,379.35-14,307.12

Finding the Fourth Proportional to 18,280.64, 27,379.35 and 14,307.12

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Solution

The fourth proportional to 18,280.64, 27,379.35 and 14,307.12 is: 21,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.64 : 27,379.35 = 14,307.12 : x
  2. Step 2: Convert to fraction form
    18,280.64/27,379.35 = 14,307.12/x
  3. Step 3: Cross multiply
    18,280.64x = 27,379.35 × 14,307.12
  4. Step 4: Simplify right side
    18,280.64x = 391,719,645.97
  5. Step 5: Solve for x
    x = 391,719,645.97/18,280.64
  6. Step 6: Final answer
    x = 21,428.11

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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.