Home / 39,614.88-54,666.40-21,709.92

Finding the Fourth Proportional to 39,614.88, 54,666.40 and 21,709.92

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Solution

The fourth proportional to 39,614.88, 54,666.40 and 21,709.92 is: 29,958.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,614.88 : 54,666.40 = 21,709.92 : x
  2. Step 2: Convert to fraction form
    39,614.88/54,666.40 = 21,709.92/x
  3. Step 3: Cross multiply
    39,614.88x = 54,666.40 × 21,709.92
  4. Step 4: Simplify right side
    39,614.88x = 1,186,803,170.69
  5. Step 5: Solve for x
    x = 1,186,803,170.69/39,614.88
  6. Step 6: Final answer
    x = 29,958.52

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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.