Home / 45,309.40-67,937.24-13,709.88

Finding the Fourth Proportional to 45,309.40, 67,937.24 and 13,709.88

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Solution

The fourth proportional to 45,309.40, 67,937.24 and 13,709.88 is: 20,556.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,309.40 : 67,937.24 = 13,709.88 : x
  2. Step 2: Convert to fraction form
    45,309.40/67,937.24 = 13,709.88/x
  3. Step 3: Cross multiply
    45,309.40x = 67,937.24 × 13,709.88
  4. Step 4: Simplify right side
    45,309.40x = 931,411,407.93
  5. Step 5: Solve for x
    x = 931,411,407.93/45,309.40
  6. Step 6: Final answer
    x = 20,556.69

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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.