Home / 38,557.81-53,209.48-21,562.09

Finding the Fourth Proportional to 38,557.81, 53,209.48 and 21,562.09

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Solution

The fourth proportional to 38,557.81, 53,209.48 and 21,562.09 is: 29,755.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,557.81 : 53,209.48 = 21,562.09 : x
  2. Step 2: Convert to fraction form
    38,557.81/53,209.48 = 21,562.09/x
  3. Step 3: Cross multiply
    38,557.81x = 53,209.48 × 21,562.09
  4. Step 4: Simplify right side
    38,557.81x = 1,147,307,596.61
  5. Step 5: Solve for x
    x = 1,147,307,596.61/38,557.81
  6. Step 6: Final answer
    x = 29,755.52

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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.