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Finding the Fourth Proportional to 40,573.60, 60,855.60 and 10,989.60

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Solution

The fourth proportional to 40,573.60, 60,855.60 and 10,989.60 is: 16,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,573.60 : 60,855.60 = 10,989.60 : x
  2. Step 2: Convert to fraction form
    40,573.60/60,855.60 = 10,989.60/x
  3. Step 3: Cross multiply
    40,573.60x = 60,855.60 × 10,989.60
  4. Step 4: Simplify right side
    40,573.60x = 668,778,701.76
  5. Step 5: Solve for x
    x = 668,778,701.76/40,573.60
  6. Step 6: Final answer
    x = 16,483.10

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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.