Home / 38,689.85-58,040.58-13,724.07

Finding the Fourth Proportional to 38,689.85, 58,040.58 and 13,724.07

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Solution

The fourth proportional to 38,689.85, 58,040.58 and 13,724.07 is: 20,588.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689.85 : 58,040.58 = 13,724.07 : x
  2. Step 2: Convert to fraction form
    38,689.85/58,040.58 = 13,724.07/x
  3. Step 3: Cross multiply
    38,689.85x = 58,040.58 × 13,724.07
  4. Step 4: Simplify right side
    38,689.85x = 796,552,816.57
  5. Step 5: Solve for x
    x = 796,552,816.57/38,689.85
  6. Step 6: Final answer
    x = 20,588.16

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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.