Home / 39,518.28-59,274.18-13,219.61

Finding the Fourth Proportional to 39,518.28, 59,274.18 and 13,219.61

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Solution

The fourth proportional to 39,518.28, 59,274.18 and 13,219.61 is: 19,828.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,518.28 : 59,274.18 = 13,219.61 : x
  2. Step 2: Convert to fraction form
    39,518.28/59,274.18 = 13,219.61/x
  3. Step 3: Cross multiply
    39,518.28x = 59,274.18 × 13,219.61
  4. Step 4: Simplify right side
    39,518.28x = 783,581,246.30
  5. Step 5: Solve for x
    x = 783,581,246.30/39,518.28
  6. Step 6: Final answer
    x = 19,828.32

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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.