Home / 38,426.64-53,029.80-21,663.60

Finding the Fourth Proportional to 38,426.64, 53,029.80 and 21,663.60

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Solution

The fourth proportional to 38,426.64, 53,029.80 and 21,663.60 is: 29,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,426.64 : 53,029.80 = 21,663.60 : x
  2. Step 2: Convert to fraction form
    38,426.64/53,029.80 = 21,663.60/x
  3. Step 3: Cross multiply
    38,426.64x = 53,029.80 × 21,663.60
  4. Step 4: Simplify right side
    38,426.64x = 1,148,816,375.28
  5. Step 5: Solve for x
    x = 1,148,816,375.28/38,426.64
  6. Step 6: Final answer
    x = 29,896.35

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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.