Home / 39,159.70-58,725.15-12,865.30

Finding the Fourth Proportional to 39,159.70, 58,725.15 and 12,865.30

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Solution

The fourth proportional to 39,159.70, 58,725.15 and 12,865.30 is: 19,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,159.70 : 58,725.15 = 12,865.30 : x
  2. Step 2: Convert to fraction form
    39,159.70/58,725.15 = 12,865.30/x
  3. Step 3: Cross multiply
    39,159.70x = 58,725.15 × 12,865.30
  4. Step 4: Simplify right side
    39,159.70x = 755,516,672.30
  5. Step 5: Solve for x
    x = 755,516,672.30/39,159.70
  6. Step 6: Final answer
    x = 19,293.22

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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.