Home / 38,644.24-53,329.32-21,649.09

Finding the Fourth Proportional to 38,644.24, 53,329.32 and 21,649.09

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Solution

The fourth proportional to 38,644.24, 53,329.32 and 21,649.09 is: 29,875.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,644.24 : 53,329.32 = 21,649.09 : x
  2. Step 2: Convert to fraction form
    38,644.24/53,329.32 = 21,649.09/x
  3. Step 3: Cross multiply
    38,644.24x = 53,329.32 × 21,649.09
  4. Step 4: Simplify right side
    38,644.24x = 1,154,531,248.32
  5. Step 5: Solve for x
    x = 1,154,531,248.32/38,644.24
  6. Step 6: Final answer
    x = 29,875.89

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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.