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Finding the Fourth Proportional to 35,805.60, 53,708.40 and 20,253.60

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Solution

The fourth proportional to 35,805.60, 53,708.40 and 20,253.60 is: 30,380.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,805.60 : 53,708.40 = 20,253.60 : x
  2. Step 2: Convert to fraction form
    35,805.60/53,708.40 = 20,253.60/x
  3. Step 3: Cross multiply
    35,805.60x = 53,708.40 × 20,253.60
  4. Step 4: Simplify right side
    35,805.60x = 1,087,788,450.24
  5. Step 5: Solve for x
    x = 1,087,788,450.24/35,805.60
  6. Step 6: Final answer
    x = 30,380.40

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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.