Home / 38,386.82-52,973.70-21,391.22

Finding the Fourth Proportional to 38,386.82, 52,973.70 and 21,391.22

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Solution

The fourth proportional to 38,386.82, 52,973.70 and 21,391.22 is: 29,519.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,386.82 : 52,973.70 = 21,391.22 : x
  2. Step 2: Convert to fraction form
    38,386.82/52,973.70 = 21,391.22/x
  3. Step 3: Cross multiply
    38,386.82x = 52,973.70 × 21,391.22
  4. Step 4: Simplify right side
    38,386.82x = 1,133,172,070.91
  5. Step 5: Solve for x
    x = 1,133,172,070.91/38,386.82
  6. Step 6: Final answer
    x = 29,519.82

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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.