Home / 38,005.40-52,447.10-21,010.70

Finding the Fourth Proportional to 38,005.40, 52,447.10 and 21,010.70

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Solution

The fourth proportional to 38,005.40, 52,447.10 and 21,010.70 is: 28,994.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,005.40 : 52,447.10 = 21,010.70 : x
  2. Step 2: Convert to fraction form
    38,005.40/52,447.10 = 21,010.70/x
  3. Step 3: Cross multiply
    38,005.40x = 52,447.10 × 21,010.70
  4. Step 4: Simplify right side
    38,005.40x = 1,101,950,283.97
  5. Step 5: Solve for x
    x = 1,101,950,283.97/38,005.40
  6. Step 6: Final answer
    x = 28,994.57

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Half scale
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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.