Home / 38,720.15-58,106.31-13,760.56

Finding the Fourth Proportional to 38,720.15, 58,106.31 and 13,760.56

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Solution

The fourth proportional to 38,720.15, 58,106.31 and 13,760.56 is: 20,650.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,720.15 : 58,106.31 = 13,760.56 : x
  2. Step 2: Convert to fraction form
    38,720.15/58,106.31 = 13,760.56/x
  3. Step 3: Cross multiply
    38,720.15x = 58,106.31 × 13,760.56
  4. Step 4: Simplify right side
    38,720.15x = 799,575,300.14
  5. Step 5: Solve for x
    x = 799,575,300.14/38,720.15
  6. Step 6: Final answer
    x = 20,650.11

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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.