Home / 39,018.80-58,508.28-12,706.64

Finding the Fourth Proportional to 39,018.80, 58,508.28 and 12,706.64

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Solution

The fourth proportional to 39,018.80, 58,508.28 and 12,706.64 is: 19,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,018.80 : 58,508.28 = 12,706.64 : x
  2. Step 2: Convert to fraction form
    39,018.80/58,508.28 = 12,706.64/x
  3. Step 3: Cross multiply
    39,018.80x = 58,508.28 × 12,706.64
  4. Step 4: Simplify right side
    39,018.80x = 743,443,650.98
  5. Step 5: Solve for x
    x = 743,443,650.98/39,018.80
  6. Step 6: Final answer
    x = 19,053.47

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1.5x scale

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.