Home / 39,139.48-58,696.93-12,838.06

Finding the Fourth Proportional to 39,139.48, 58,696.93 and 12,838.06

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Solution

The fourth proportional to 39,139.48, 58,696.93 and 12,838.06 is: 19,253.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139.48 : 58,696.93 = 12,838.06 : x
  2. Step 2: Convert to fraction form
    39,139.48/58,696.93 = 12,838.06/x
  3. Step 3: Cross multiply
    39,139.48x = 58,696.93 × 12,838.06
  4. Step 4: Simplify right side
    39,139.48x = 753,554,709.16
  5. Step 5: Solve for x
    x = 753,554,709.16/39,139.48
  6. Step 6: Final answer
    x = 19,253.06

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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.