Home / 19,615.91-29,424.05-13,969.76

Finding the Fourth Proportional to 19,615.91, 29,424.05 and 13,969.76

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Solution

The fourth proportional to 19,615.91, 29,424.05 and 13,969.76 is: 20,954.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.91 : 29,424.05 = 13,969.76 : x
  2. Step 2: Convert to fraction form
    19,615.91/29,424.05 = 13,969.76/x
  3. Step 3: Cross multiply
    19,615.91x = 29,424.05 × 13,969.76
  4. Step 4: Simplify right side
    19,615.91x = 411,046,846.88
  5. Step 5: Solve for x
    x = 411,046,846.88/19,615.91
  6. Step 6: Final answer
    x = 20,954.77

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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.