Home / 22,960.51-31,684.21-12,888.04

Finding the Fourth Proportional to 22,960.51, 31,684.21 and 12,888.04

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Solution

The fourth proportional to 22,960.51, 31,684.21 and 12,888.04 is: 17,784.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,960.51 : 31,684.21 = 12,888.04 : x
  2. Step 2: Convert to fraction form
    22,960.51/31,684.21 = 12,888.04/x
  3. Step 3: Cross multiply
    22,960.51x = 31,684.21 × 12,888.04
  4. Step 4: Simplify right side
    22,960.51x = 408,347,142.99
  5. Step 5: Solve for x
    x = 408,347,142.99/22,960.51
  6. Step 6: Final answer
    x = 17,784.76

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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.