Home / 19,670.22-27,154.26-12,600.81

Finding the Fourth Proportional to 19,670.22, 27,154.26 and 12,600.81

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Solution

The fourth proportional to 19,670.22, 27,154.26 and 12,600.81 is: 17,395.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.22 : 27,154.26 = 12,600.81 : x
  2. Step 2: Convert to fraction form
    19,670.22/27,154.26 = 12,600.81/x
  3. Step 3: Cross multiply
    19,670.22x = 27,154.26 × 12,600.81
  4. Step 4: Simplify right side
    19,670.22x = 342,165,670.95
  5. Step 5: Solve for x
    x = 342,165,670.95/19,670.22
  6. Step 6: Final answer
    x = 17,395.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.