Home / 38,931.38-53,725.29-21,026.38

Finding the Fourth Proportional to 38,931.38, 53,725.29 and 21,026.38

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Solution

The fourth proportional to 38,931.38, 53,725.29 and 21,026.38 is: 29,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,931.38 : 53,725.29 = 21,026.38 : x
  2. Step 2: Convert to fraction form
    38,931.38/53,725.29 = 21,026.38/x
  3. Step 3: Cross multiply
    38,931.38x = 53,725.29 × 21,026.38
  4. Step 4: Simplify right side
    38,931.38x = 1,129,648,363.15
  5. Step 5: Solve for x
    x = 1,129,648,363.15/38,931.38
  6. Step 6: Final answer
    x = 29,016.40

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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.