Home / 34,687.30-47,868.48-18,771.76

Finding the Fourth Proportional to 34,687.30, 47,868.48 and 18,771.76

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Solution

The fourth proportional to 34,687.30, 47,868.48 and 18,771.76 is: 25,905.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,687.30 : 47,868.48 = 18,771.76 : x
  2. Step 2: Convert to fraction form
    34,687.30/47,868.48 = 18,771.76/x
  3. Step 3: Cross multiply
    34,687.30x = 47,868.48 × 18,771.76
  4. Step 4: Simplify right side
    34,687.30x = 898,575,618.12
  5. Step 5: Solve for x
    x = 898,575,618.12/34,687.30
  6. Step 6: Final answer
    x = 25,905.03

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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.