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Finding the Fourth Proportional to 36,492.80, 54,726.40 and 18,956.80

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Solution

The fourth proportional to 36,492.80, 54,726.40 and 18,956.80 is: 28,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,492.80 : 54,726.40 = 18,956.80 : x
  2. Step 2: Convert to fraction form
    36,492.80/54,726.40 = 18,956.80/x
  3. Step 3: Cross multiply
    36,492.80x = 54,726.40 × 18,956.80
  4. Step 4: Simplify right side
    36,492.80x = 1,037,437,419.52
  5. Step 5: Solve for x
    x = 1,037,437,419.52/36,492.80
  6. Step 6: Final answer
    x = 28,428.55

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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.