Home / 28,401.40-42,602.10-25,636.60

Finding the Fourth Proportional to 28,401.40, 42,602.10 and 25,636.60

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Solution

The fourth proportional to 28,401.40, 42,602.10 and 25,636.60 is: 38,454.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,401.40 : 42,602.10 = 25,636.60 : x
  2. Step 2: Convert to fraction form
    28,401.40/42,602.10 = 25,636.60/x
  3. Step 3: Cross multiply
    28,401.40x = 42,602.10 × 25,636.60
  4. Step 4: Simplify right side
    28,401.40x = 1,092,172,996.86
  5. Step 5: Solve for x
    x = 1,092,172,996.86/28,401.40
  6. Step 6: Final answer
    x = 38,454.90

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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.