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Finding the Fourth Proportional to 38,347.40, 57,486.90 and 14,968.40

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Solution

The fourth proportional to 38,347.40, 57,486.90 and 14,968.40 is: 22,439.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,347.40 : 57,486.90 = 14,968.40 : x
  2. Step 2: Convert to fraction form
    38,347.40/57,486.90 = 14,968.40/x
  3. Step 3: Cross multiply
    38,347.40x = 57,486.90 × 14,968.40
  4. Step 4: Simplify right side
    38,347.40x = 860,486,913.96
  5. Step 5: Solve for x
    x = 860,486,913.96/38,347.40
  6. Step 6: Final answer
    x = 22,439.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.