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Finding the Fourth Proportional to 38,363.81, 52,941.89 and 21,368.25

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Solution

The fourth proportional to 38,363.81, 52,941.89 and 21,368.25 is: 29,488.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,363.81 : 52,941.89 = 21,368.25 : x
  2. Step 2: Convert to fraction form
    38,363.81/52,941.89 = 21,368.25/x
  3. Step 3: Cross multiply
    38,363.81x = 52,941.89 × 21,368.25
  4. Step 4: Simplify right side
    38,363.81x = 1,131,275,434.15
  5. Step 5: Solve for x
    x = 1,131,275,434.15/38,363.81
  6. Step 6: Final answer
    x = 29,488.09

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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.