Home / 38,669.12-53,367.80-21,677.94

Finding the Fourth Proportional to 38,669.12, 53,367.80 and 21,677.94

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Solution

The fourth proportional to 38,669.12, 53,367.80 and 21,677.94 is: 29,918.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,669.12 : 53,367.80 = 21,677.94 : x
  2. Step 2: Convert to fraction form
    38,669.12/53,367.80 = 21,677.94/x
  3. Step 3: Cross multiply
    38,669.12x = 53,367.80 × 21,677.94
  4. Step 4: Simplify right side
    38,669.12x = 1,156,903,857.94
  5. Step 5: Solve for x
    x = 1,156,903,857.94/38,669.12
  6. Step 6: Final answer
    x = 29,918.03

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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.