Home / 39,509.28-59,265-13,213.08

Finding the Fourth Proportional to 39,509.28, 59,265 and 13,213.08

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Solution

The fourth proportional to 39,509.28, 59,265 and 13,213.08 is: 19,819.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,509.28 : 59,265 = 13,213.08 : x
  2. Step 2: Convert to fraction form
    39,509.28/59,265 = 13,213.08/x
  3. Step 3: Cross multiply
    39,509.28x = 59,265 × 13,213.08
  4. Step 4: Simplify right side
    39,509.28x = 783,073,186.20
  5. Step 5: Solve for x
    x = 783,073,186.20/39,509.28
  6. Step 6: Final answer
    x = 19,819.98

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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.