Home / 34,570.40-51,881.20-13,808.80

Finding the Fourth Proportional to 34,570.40, 51,881.20 and 13,808.80

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Solution

The fourth proportional to 34,570.40, 51,881.20 and 13,808.80 is: 20,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,570.40 : 51,881.20 = 13,808.80 : x
  2. Step 2: Convert to fraction form
    34,570.40/51,881.20 = 13,808.80/x
  3. Step 3: Cross multiply
    34,570.40x = 51,881.20 × 13,808.80
  4. Step 4: Simplify right side
    34,570.40x = 716,417,114.56
  5. Step 5: Solve for x
    x = 716,417,114.56/34,570.40
  6. Step 6: Final answer
    x = 20,723.43

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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.