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Finding the Fourth Proportional to 35,901.60, 53,830.80 and 18,405.60

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Solution

The fourth proportional to 35,901.60, 53,830.80 and 18,405.60 is: 27,597.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,901.60 : 53,830.80 = 18,405.60 : x
  2. Step 2: Convert to fraction form
    35,901.60/53,830.80 = 18,405.60/x
  3. Step 3: Cross multiply
    35,901.60x = 53,830.80 × 18,405.60
  4. Step 4: Simplify right side
    35,901.60x = 990,788,172.48
  5. Step 5: Solve for x
    x = 990,788,172.48/35,901.60
  6. Step 6: Final answer
    x = 27,597.33

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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.