Home / 39,320.70-58,986.84-13,019.58

Finding the Fourth Proportional to 39,320.70, 58,986.84 and 13,019.58

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Solution

The fourth proportional to 39,320.70, 58,986.84 and 13,019.58 is: 19,531.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,320.70 : 58,986.84 = 13,019.58 : x
  2. Step 2: Convert to fraction form
    39,320.70/58,986.84 = 13,019.58/x
  3. Step 3: Cross multiply
    39,320.70x = 58,986.84 × 13,019.58
  4. Step 4: Simplify right side
    39,320.70x = 767,983,882.33
  5. Step 5: Solve for x
    x = 767,983,882.33/39,320.70
  6. Step 6: Final answer
    x = 19,531.29

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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.