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Finding the Fourth Proportional to 35,980.30, 53,946.15 and 18,435.70

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Solution

The fourth proportional to 35,980.30, 53,946.15 and 18,435.70 is: 27,641.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,980.30 : 53,946.15 = 18,435.70 : x
  2. Step 2: Convert to fraction form
    35,980.30/53,946.15 = 18,435.70/x
  3. Step 3: Cross multiply
    35,980.30x = 53,946.15 × 18,435.70
  4. Step 4: Simplify right side
    35,980.30x = 994,535,037.56
  5. Step 5: Solve for x
    x = 994,535,037.56/35,980.30
  6. Step 6: Final answer
    x = 27,641.10

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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.