Home / 36,425.60-54,638.40-18,929.60

Finding the Fourth Proportional to 36,425.60, 54,638.40 and 18,929.60

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Solution

The fourth proportional to 36,425.60, 54,638.40 and 18,929.60 is: 28,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,425.60 : 54,638.40 = 18,929.60 : x
  2. Step 2: Convert to fraction form
    36,425.60/54,638.40 = 18,929.60/x
  3. Step 3: Cross multiply
    36,425.60x = 54,638.40 × 18,929.60
  4. Step 4: Simplify right side
    36,425.60x = 1,034,283,056.64
  5. Step 5: Solve for x
    x = 1,034,283,056.64/36,425.60
  6. Step 6: Final answer
    x = 28,394.40

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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.