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Finding the Fourth Proportional to 18,291.60, 27,437.40 and 14,573.70

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Solution

The fourth proportional to 18,291.60, 27,437.40 and 14,573.70 is: 21,860.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.60 : 27,437.40 = 14,573.70 : x
  2. Step 2: Convert to fraction form
    18,291.60/27,437.40 = 14,573.70/x
  3. Step 3: Cross multiply
    18,291.60x = 27,437.40 × 14,573.70
  4. Step 4: Simplify right side
    18,291.60x = 399,864,436.38
  5. Step 5: Solve for x
    x = 399,864,436.38/18,291.60
  6. Step 6: Final answer
    x = 21,860.55

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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.