Home / 39,688.99-59,521.19-13,387.58

Finding the Fourth Proportional to 39,688.99, 59,521.19 and 13,387.58

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Solution

The fourth proportional to 39,688.99, 59,521.19 and 13,387.58 is: 20,077.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,688.99 : 59,521.19 = 13,387.58 : x
  2. Step 2: Convert to fraction form
    39,688.99/59,521.19 = 13,387.58/x
  3. Step 3: Cross multiply
    39,688.99x = 59,521.19 × 13,387.58
  4. Step 4: Simplify right side
    39,688.99x = 796,844,774.69
  5. Step 5: Solve for x
    x = 796,844,774.69/39,688.99
  6. Step 6: Final answer
    x = 20,077.23

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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.