Home / 39,412.84-59,128.17-13,118.62

Finding the Fourth Proportional to 39,412.84, 59,128.17 and 13,118.62

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Solution

The fourth proportional to 39,412.84, 59,128.17 and 13,118.62 is: 19,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,412.84 : 59,128.17 = 13,118.62 : x
  2. Step 2: Convert to fraction form
    39,412.84/59,128.17 = 13,118.62/x
  3. Step 3: Cross multiply
    39,412.84x = 59,128.17 × 13,118.62
  4. Step 4: Simplify right side
    39,412.84x = 775,679,993.53
  5. Step 5: Solve for x
    x = 775,679,993.53/39,412.84
  6. Step 6: Final answer
    x = 19,680.90

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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.