Home / 19,534.41-29,309.81-12,145.10

Finding the Fourth Proportional to 19,534.41, 29,309.81 and 12,145.10

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Solution

The fourth proportional to 19,534.41, 29,309.81 and 12,145.10 is: 18,222.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,534.41 : 29,309.81 = 12,145.10 : x
  2. Step 2: Convert to fraction form
    19,534.41/29,309.81 = 12,145.10/x
  3. Step 3: Cross multiply
    19,534.41x = 29,309.81 × 12,145.10
  4. Step 4: Simplify right side
    19,534.41x = 355,970,366.16
  5. Step 5: Solve for x
    x = 355,970,366.16/19,534.41
  6. Step 6: Final answer
    x = 18,222.73

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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.