Home / 39,019.80-58,509.78-12,707.64

Finding the Fourth Proportional to 39,019.80, 58,509.78 and 12,707.64

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Solution

The fourth proportional to 39,019.80, 58,509.78 and 12,707.64 is: 19,054.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,019.80 : 58,509.78 = 12,707.64 : x
  2. Step 2: Convert to fraction form
    39,019.80/58,509.78 = 12,707.64/x
  3. Step 3: Cross multiply
    39,019.80x = 58,509.78 × 12,707.64
  4. Step 4: Simplify right side
    39,019.80x = 743,521,220.72
  5. Step 5: Solve for x
    x = 743,521,220.72/39,019.80
  6. Step 6: Final answer
    x = 19,054.97

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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.