Home / 42,844.12-64,269.42-13,265.08

Finding the Fourth Proportional to 42,844.12, 64,269.42 and 13,265.08

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Solution

The fourth proportional to 42,844.12, 64,269.42 and 13,265.08 is: 19,898.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,844.12 : 64,269.42 = 13,265.08 : x
  2. Step 2: Convert to fraction form
    42,844.12/64,269.42 = 13,265.08/x
  3. Step 3: Cross multiply
    42,844.12x = 64,269.42 × 13,265.08
  4. Step 4: Simplify right side
    42,844.12x = 852,538,997.85
  5. Step 5: Solve for x
    x = 852,538,997.85/42,844.12
  6. Step 6: Final answer
    x = 19,898.62

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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.