Home / 25,365.90-38,072.10-12,894.60

Finding the Fourth Proportional to 25,365.90, 38,072.10 and 12,894.60

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Solution

The fourth proportional to 25,365.90, 38,072.10 and 12,894.60 is: 19,353.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,365.90 : 38,072.10 = 12,894.60 : x
  2. Step 2: Convert to fraction form
    25,365.90/38,072.10 = 12,894.60/x
  3. Step 3: Cross multiply
    25,365.90x = 38,072.10 × 12,894.60
  4. Step 4: Simplify right side
    25,365.90x = 490,924,500.66
  5. Step 5: Solve for x
    x = 490,924,500.66/25,365.90
  6. Step 6: Final answer
    x = 19,353.72

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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.