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Finding the Fourth Proportional to 40,477.35, 60,697.80 and 18,279.30

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Solution

The fourth proportional to 40,477.35, 60,697.80 and 18,279.30 is: 27,410.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,477.35 : 60,697.80 = 18,279.30 : x
  2. Step 2: Convert to fraction form
    40,477.35/60,697.80 = 18,279.30/x
  3. Step 3: Cross multiply
    40,477.35x = 60,697.80 × 18,279.30
  4. Step 4: Simplify right side
    40,477.35x = 1,109,513,295.54
  5. Step 5: Solve for x
    x = 1,109,513,295.54/40,477.35
  6. Step 6: Final answer
    x = 27,410.72

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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.