Home / 39,678.12-59,520.63-13,016.11

Finding the Fourth Proportional to 39,678.12, 59,520.63 and 13,016.11

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Solution

The fourth proportional to 39,678.12, 59,520.63 and 13,016.11 is: 19,525.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,678.12 : 59,520.63 = 13,016.11 : x
  2. Step 2: Convert to fraction form
    39,678.12/59,520.63 = 13,016.11/x
  3. Step 3: Cross multiply
    39,678.12x = 59,520.63 × 13,016.11
  4. Step 4: Simplify right side
    39,678.12x = 774,727,190.56
  5. Step 5: Solve for x
    x = 774,727,190.56/39,678.12
  6. Step 6: Final answer
    x = 19,525.30

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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.