Home / 23,059.28-31,822.00-12,985.72

Finding the Fourth Proportional to 23,059.28, 31,822.00 and 12,985.72

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Solution

The fourth proportional to 23,059.28, 31,822.00 and 12,985.72 is: 17,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,059.28 : 31,822.00 = 12,985.72 : x
  2. Step 2: Convert to fraction form
    23,059.28/31,822.00 = 12,985.72/x
  3. Step 3: Cross multiply
    23,059.28x = 31,822.00 × 12,985.72
  4. Step 4: Simplify right side
    23,059.28x = 413,231,469.82
  5. Step 5: Solve for x
    x = 413,231,469.82/23,059.28
  6. Step 6: Final answer
    x = 17,920.40

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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.