Home / 38,422.88-53,033.29-21,665.60

Finding the Fourth Proportional to 38,422.88, 53,033.29 and 21,665.60

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Solution

The fourth proportional to 38,422.88, 53,033.29 and 21,665.60 is: 29,904.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,422.88 : 53,033.29 = 21,665.60 : x
  2. Step 2: Convert to fraction form
    38,422.88/53,033.29 = 21,665.60/x
  3. Step 3: Cross multiply
    38,422.88x = 53,033.29 × 21,665.60
  4. Step 4: Simplify right side
    38,422.88x = 1,148,997,728.49
  5. Step 5: Solve for x
    x = 1,148,997,728.49/38,422.88
  6. Step 6: Final answer
    x = 29,904.00

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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.