Home / 40,687.12-61,030.68-11,104.30

Finding the Fourth Proportional to 40,687.12, 61,030.68 and 11,104.30

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Solution

The fourth proportional to 40,687.12, 61,030.68 and 11,104.30 is: 16,656.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,687.12 : 61,030.68 = 11,104.30 : x
  2. Step 2: Convert to fraction form
    40,687.12/61,030.68 = 11,104.30/x
  3. Step 3: Cross multiply
    40,687.12x = 61,030.68 × 11,104.30
  4. Step 4: Simplify right side
    40,687.12x = 677,702,979.92
  5. Step 5: Solve for x
    x = 677,702,979.92/40,687.12
  6. Step 6: Final answer
    x = 16,656.45

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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.