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Finding the Fourth Proportional to 37,490.40, 56,219.40 and 18,763.20

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Solution

The fourth proportional to 37,490.40, 56,219.40 and 18,763.20 is: 28,136.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,490.40 : 56,219.40 = 18,763.20 : x
  2. Step 2: Convert to fraction form
    37,490.40/56,219.40 = 18,763.20/x
  3. Step 3: Cross multiply
    37,490.40x = 56,219.40 × 18,763.20
  4. Step 4: Simplify right side
    37,490.40x = 1,054,855,846.08
  5. Step 5: Solve for x
    x = 1,054,855,846.08/37,490.40
  6. Step 6: Final answer
    x = 28,136.69

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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.