Home / 57,311.84-85,971.60-15,191.30

Finding the Fourth Proportional to 57,311.84, 85,971.60 and 15,191.30

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Solution

The fourth proportional to 57,311.84, 85,971.60 and 15,191.30 is: 22,787.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,311.84 : 85,971.60 = 15,191.30 : x
  2. Step 2: Convert to fraction form
    57,311.84/85,971.60 = 15,191.30/x
  3. Step 3: Cross multiply
    57,311.84x = 85,971.60 × 15,191.30
  4. Step 4: Simplify right side
    57,311.84x = 1,306,019,937.22
  5. Step 5: Solve for x
    x = 1,306,019,937.22/57,311.84
  6. Step 6: Final answer
    x = 22,787.96

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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.