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Finding the Fourth Proportional to 30,262.60, 45,377.70 and 12,712.60

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Solution

The fourth proportional to 30,262.60, 45,377.70 and 12,712.60 is: 19,062.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,262.60 : 45,377.70 = 12,712.60 : x
  2. Step 2: Convert to fraction form
    30,262.60/45,377.70 = 12,712.60/x
  3. Step 3: Cross multiply
    30,262.60x = 45,377.70 × 12,712.60
  4. Step 4: Simplify right side
    30,262.60x = 576,868,549.02
  5. Step 5: Solve for x
    x = 576,868,549.02/30,262.60
  6. Step 6: Final answer
    x = 19,062.09

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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.