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Finding the Fourth Proportional to 30,476.40, 45,714.60 and 25,292.40

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Solution

The fourth proportional to 30,476.40, 45,714.60 and 25,292.40 is: 37,938.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,476.40 : 45,714.60 = 25,292.40 : x
  2. Step 2: Convert to fraction form
    30,476.40/45,714.60 = 25,292.40/x
  3. Step 3: Cross multiply
    30,476.40x = 45,714.60 × 25,292.40
  4. Step 4: Simplify right side
    30,476.40x = 1,156,231,949.04
  5. Step 5: Solve for x
    x = 1,156,231,949.04/30,476.40
  6. Step 6: Final answer
    x = 37,938.60

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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.