Home / 39,812.72-59,727.69-13,159.85

Finding the Fourth Proportional to 39,812.72, 59,727.69 and 13,159.85

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Solution

The fourth proportional to 39,812.72, 59,727.69 and 13,159.85 is: 19,742.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,812.72 : 59,727.69 = 13,159.85 : x
  2. Step 2: Convert to fraction form
    39,812.72/59,727.69 = 13,159.85/x
  3. Step 3: Cross multiply
    39,812.72x = 59,727.69 × 13,159.85
  4. Step 4: Simplify right side
    39,812.72x = 786,007,142.61
  5. Step 5: Solve for x
    x = 786,007,142.61/39,812.72
  6. Step 6: Final answer
    x = 19,742.62

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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.