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Finding the Fourth Proportional to 32,505.72, 48,762.18 and 12,781.68

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Solution

The fourth proportional to 32,505.72, 48,762.18 and 12,781.68 is: 19,173.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,505.72 : 48,762.18 = 12,781.68 : x
  2. Step 2: Convert to fraction form
    32,505.72/48,762.18 = 12,781.68/x
  3. Step 3: Cross multiply
    32,505.72x = 48,762.18 × 12,781.68
  4. Step 4: Simplify right side
    32,505.72x = 623,262,580.86
  5. Step 5: Solve for x
    x = 623,262,580.86/32,505.72
  6. Step 6: Final answer
    x = 19,173.94

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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.