Home / 25,461.40-38,192.10-20,212.60

Finding the Fourth Proportional to 25,461.40, 38,192.10 and 20,212.60

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Solution

The fourth proportional to 25,461.40, 38,192.10 and 20,212.60 is: 30,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,461.40 : 38,192.10 = 20,212.60 : x
  2. Step 2: Convert to fraction form
    25,461.40/38,192.10 = 20,212.60/x
  3. Step 3: Cross multiply
    25,461.40x = 38,192.10 × 20,212.60
  4. Step 4: Simplify right side
    25,461.40x = 771,961,640.46
  5. Step 5: Solve for x
    x = 771,961,640.46/25,461.40
  6. Step 6: Final answer
    x = 30,318.90

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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.