Home / 17,280.11-23,840.45-11,315.07

Finding the Fourth Proportional to 17,280.11, 23,840.45 and 11,315.07

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Solution

The fourth proportional to 17,280.11, 23,840.45 and 11,315.07 is: 15,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,280.11 : 23,840.45 = 11,315.07 : x
  2. Step 2: Convert to fraction form
    17,280.11/23,840.45 = 11,315.07/x
  3. Step 3: Cross multiply
    17,280.11x = 23,840.45 × 11,315.07
  4. Step 4: Simplify right side
    17,280.11x = 269,756,360.58
  5. Step 5: Solve for x
    x = 269,756,360.58/17,280.11
  6. Step 6: Final answer
    x = 15,610.80

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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.