Home / 39,802.20-59,690.58-13,143.22

Finding the Fourth Proportional to 39,802.20, 59,690.58 and 13,143.22

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Solution

The fourth proportional to 39,802.20, 59,690.58 and 13,143.22 is: 19,710.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,802.20 : 59,690.58 = 13,143.22 : x
  2. Step 2: Convert to fraction form
    39,802.20/59,690.58 = 13,143.22/x
  3. Step 3: Cross multiply
    39,802.20x = 59,690.58 × 13,143.22
  4. Step 4: Simplify right side
    39,802.20x = 784,526,424.87
  5. Step 5: Solve for x
    x = 784,526,424.87/39,802.20
  6. Step 6: Final answer
    x = 19,710.63

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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.