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Finding the Fourth Proportional to 24,384.40, 36,619.80 and 18,851.20

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Solution

The fourth proportional to 24,384.40, 36,619.80 and 18,851.20 is: 28,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,384.40 : 36,619.80 = 18,851.20 : x
  2. Step 2: Convert to fraction form
    24,384.40/36,619.80 = 18,851.20/x
  3. Step 3: Cross multiply
    24,384.40x = 36,619.80 × 18,851.20
  4. Step 4: Simplify right side
    24,384.40x = 690,327,173.76
  5. Step 5: Solve for x
    x = 690,327,173.76/24,384.40
  6. Step 6: Final answer
    x = 28,310.20

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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.