Home / 38,436.48-53,043.12-21,666.24

Finding the Fourth Proportional to 38,436.48, 53,043.12 and 21,666.24

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Solution

The fourth proportional to 38,436.48, 53,043.12 and 21,666.24 is: 29,899.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,436.48 : 53,043.12 = 21,666.24 : x
  2. Step 2: Convert to fraction form
    38,436.48/53,043.12 = 21,666.24/x
  3. Step 3: Cross multiply
    38,436.48x = 53,043.12 × 21,666.24
  4. Step 4: Simplify right side
    38,436.48x = 1,149,244,968.27
  5. Step 5: Solve for x
    x = 1,149,244,968.27/38,436.48
  6. Step 6: Final answer
    x = 29,899.85

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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.