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Finding the Fourth Proportional to 47,337.92, 65,314.64 and 28,936.40

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Solution

The fourth proportional to 47,337.92, 65,314.64 and 28,936.40 is: 39,925.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,337.92 : 65,314.64 = 28,936.40 : x
  2. Step 2: Convert to fraction form
    47,337.92/65,314.64 = 28,936.40/x
  3. Step 3: Cross multiply
    47,337.92x = 65,314.64 × 28,936.40
  4. Step 4: Simplify right side
    47,337.92x = 1,889,970,548.90
  5. Step 5: Solve for x
    x = 1,889,970,548.90/47,337.92
  6. Step 6: Final answer
    x = 39,925.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.