Home / 39,315.35-58,982.23-13,020.09

Finding the Fourth Proportional to 39,315.35, 58,982.23 and 13,020.09

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Solution

The fourth proportional to 39,315.35, 58,982.23 and 13,020.09 is: 19,533.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,315.35 : 58,982.23 = 13,020.09 : x
  2. Step 2: Convert to fraction form
    39,315.35/58,982.23 = 13,020.09/x
  3. Step 3: Cross multiply
    39,315.35x = 58,982.23 × 13,020.09
  4. Step 4: Simplify right side
    39,315.35x = 767,953,943.00
  5. Step 5: Solve for x
    x = 767,953,943.00/39,315.35
  6. Step 6: Final answer
    x = 19,533.19

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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.