Home / 38,646.09-53,334.98-21,650.06

Finding the Fourth Proportional to 38,646.09, 53,334.98 and 21,650.06

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Solution

The fourth proportional to 38,646.09, 53,334.98 and 21,650.06 is: 29,878.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,646.09 : 53,334.98 = 21,650.06 : x
  2. Step 2: Convert to fraction form
    38,646.09/53,334.98 = 21,650.06/x
  3. Step 3: Cross multiply
    38,646.09x = 53,334.98 × 21,650.06
  4. Step 4: Simplify right side
    38,646.09x = 1,154,705,517.10
  5. Step 5: Solve for x
    x = 1,154,705,517.10/38,646.09
  6. Step 6: Final answer
    x = 29,878.97

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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.