Home / 27,720.15-41,586.30-13,686.90

Finding the Fourth Proportional to 27,720.15, 41,586.30 and 13,686.90

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Solution

The fourth proportional to 27,720.15, 41,586.30 and 13,686.90 is: 20,533.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,720.15 : 41,586.30 = 13,686.90 : x
  2. Step 2: Convert to fraction form
    27,720.15/41,586.30 = 13,686.90/x
  3. Step 3: Cross multiply
    27,720.15x = 41,586.30 × 13,686.90
  4. Step 4: Simplify right side
    27,720.15x = 569,187,529.47
  5. Step 5: Solve for x
    x = 569,187,529.47/27,720.15
  6. Step 6: Final answer
    x = 20,533.35

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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.