Home / 39,138.32-58,706.80-15,764.16

Finding the Fourth Proportional to 39,138.32, 58,706.80 and 15,764.16

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Solution

The fourth proportional to 39,138.32, 58,706.80 and 15,764.16 is: 23,645.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.32 : 58,706.80 = 15,764.16 : x
  2. Step 2: Convert to fraction form
    39,138.32/58,706.80 = 15,764.16/x
  3. Step 3: Cross multiply
    39,138.32x = 58,706.80 × 15,764.16
  4. Step 4: Simplify right side
    39,138.32x = 925,463,388.29
  5. Step 5: Solve for x
    x = 925,463,388.29/39,138.32
  6. Step 6: Final answer
    x = 23,645.97

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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.