Home / 22,915.49-31,622.85-13,354.77

Finding the Fourth Proportional to 22,915.49, 31,622.85 and 13,354.77

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Solution

The fourth proportional to 22,915.49, 31,622.85 and 13,354.77 is: 18,429.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,915.49 : 31,622.85 = 13,354.77 : x
  2. Step 2: Convert to fraction form
    22,915.49/31,622.85 = 13,354.77/x
  3. Step 3: Cross multiply
    22,915.49x = 31,622.85 × 13,354.77
  4. Step 4: Simplify right side
    22,915.49x = 422,315,663.61
  5. Step 5: Solve for x
    x = 422,315,663.61/22,915.49
  6. Step 6: Final answer
    x = 18,429.27

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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.