Home / 22,746.91-31,391.33-12,675.78

Finding the Fourth Proportional to 22,746.91, 31,391.33 and 12,675.78

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Solution

The fourth proportional to 22,746.91, 31,391.33 and 12,675.78 is: 17,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,746.91 : 31,391.33 = 12,675.78 : x
  2. Step 2: Convert to fraction form
    22,746.91/31,391.33 = 12,675.78/x
  3. Step 3: Cross multiply
    22,746.91x = 31,391.33 × 12,675.78
  4. Step 4: Simplify right side
    22,746.91x = 397,909,592.99
  5. Step 5: Solve for x
    x = 397,909,592.99/22,746.91
  6. Step 6: Final answer
    x = 17,492.91

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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.