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Finding the Fourth Proportional to 30,201.40, 45,302.10 and 23,980.60

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Solution

The fourth proportional to 30,201.40, 45,302.10 and 23,980.60 is: 35,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,201.40 : 45,302.10 = 23,980.60 : x
  2. Step 2: Convert to fraction form
    30,201.40/45,302.10 = 23,980.60/x
  3. Step 3: Cross multiply
    30,201.40x = 45,302.10 × 23,980.60
  4. Step 4: Simplify right side
    30,201.40x = 1,086,371,539.26
  5. Step 5: Solve for x
    x = 1,086,371,539.26/30,201.40
  6. Step 6: Final answer
    x = 35,970.90

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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.