Home / 38,374.40-52,958.31-21,378.63

Finding the Fourth Proportional to 38,374.40, 52,958.31 and 21,378.63

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Solution

The fourth proportional to 38,374.40, 52,958.31 and 21,378.63 is: 29,503.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,374.40 : 52,958.31 = 21,378.63 : x
  2. Step 2: Convert to fraction form
    38,374.40/52,958.31 = 21,378.63/x
  3. Step 3: Cross multiply
    38,374.40x = 52,958.31 × 21,378.63
  4. Step 4: Simplify right side
    38,374.40x = 1,132,176,233.34
  5. Step 5: Solve for x
    x = 1,132,176,233.34/38,374.40
  6. Step 6: Final answer
    x = 29,503.43

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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.