Home / 38,222-52,746.40-21,455.04

Finding the Fourth Proportional to 38,222, 52,746.40 and 21,455.04

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Solution

The fourth proportional to 38,222, 52,746.40 and 21,455.04 is: 29,607.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,222 : 52,746.40 = 21,455.04 : x
  2. Step 2: Convert to fraction form
    38,222/52,746.40 = 21,455.04/x
  3. Step 3: Cross multiply
    38,222x = 52,746.40 × 21,455.04
  4. Step 4: Simplify right side
    38,222x = 1,131,676,121.86
  5. Step 5: Solve for x
    x = 1,131,676,121.86/38,222
  6. Step 6: Final answer
    x = 29,607.98

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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.