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Finding the Fourth Proportional to 30,887.60, 46,295.60 and 14,212.64

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Solution

The fourth proportional to 30,887.60, 46,295.60 and 14,212.64 is: 21,302.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,887.60 : 46,295.60 = 14,212.64 : x
  2. Step 2: Convert to fraction form
    30,887.60/46,295.60 = 14,212.64/x
  3. Step 3: Cross multiply
    30,887.60x = 46,295.60 × 14,212.64
  4. Step 4: Simplify right side
    30,887.60x = 657,982,696.38
  5. Step 5: Solve for x
    x = 657,982,696.38/30,887.60
  6. Step 6: Final answer
    x = 21,302.49

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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.