Home / 39,315.84-58,982.98-13,020.59

Finding the Fourth Proportional to 39,315.84, 58,982.98 and 13,020.59

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Solution

The fourth proportional to 39,315.84, 58,982.98 and 13,020.59 is: 19,533.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,315.84 : 58,982.98 = 13,020.59 : x
  2. Step 2: Convert to fraction form
    39,315.84/58,982.98 = 13,020.59/x
  3. Step 3: Cross multiply
    39,315.84x = 58,982.98 × 13,020.59
  4. Step 4: Simplify right side
    39,315.84x = 767,993,199.56
  5. Step 5: Solve for x
    x = 767,993,199.56/39,315.84
  6. Step 6: Final answer
    x = 19,533.94

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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.