Home / 18,280.13-27,420.34-4,429.13

Finding the Fourth Proportional to 18,280.13, 27,420.34 and 4,429.13

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Solution

The fourth proportional to 18,280.13, 27,420.34 and 4,429.13 is: 6,643.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.13 : 27,420.34 = 4,429.13 : x
  2. Step 2: Convert to fraction form
    18,280.13/27,420.34 = 4,429.13/x
  3. Step 3: Cross multiply
    18,280.13x = 27,420.34 × 4,429.13
  4. Step 4: Simplify right side
    18,280.13x = 121,448,102.33
  5. Step 5: Solve for x
    x = 121,448,102.33/18,280.13
  6. Step 6: Final answer
    x = 6,643.72

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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.