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Finding the Fourth Proportional to 30,465.60, 42,046.36 and 17,037.60

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Solution

The fourth proportional to 30,465.60, 42,046.36 and 17,037.60 is: 23,514.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,465.60 : 42,046.36 = 17,037.60 : x
  2. Step 2: Convert to fraction form
    30,465.60/42,046.36 = 17,037.60/x
  3. Step 3: Cross multiply
    30,465.60x = 42,046.36 × 17,037.60
  4. Step 4: Simplify right side
    30,465.60x = 716,369,063.14
  5. Step 5: Solve for x
    x = 716,369,063.14/30,465.60
  6. Step 6: Final answer
    x = 23,514.03

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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.