Home / 38,128.10-57,199.78-13,169.06

Finding the Fourth Proportional to 38,128.10, 57,199.78 and 13,169.06

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Solution

The fourth proportional to 38,128.10, 57,199.78 and 13,169.06 is: 19,756.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,128.10 : 57,199.78 = 13,169.06 : x
  2. Step 2: Convert to fraction form
    38,128.10/57,199.78 = 13,169.06/x
  3. Step 3: Cross multiply
    38,128.10x = 57,199.78 × 13,169.06
  4. Step 4: Simplify right side
    38,128.10x = 753,267,048.81
  5. Step 5: Solve for x
    x = 753,267,048.81/38,128.10
  6. Step 6: Final answer
    x = 19,756.22

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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.