Home / 19,908.98-29,863.47-5,117.91

Finding the Fourth Proportional to 19,908.98, 29,863.47 and 5,117.91

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Solution

The fourth proportional to 19,908.98, 29,863.47 and 5,117.91 is: 7,676.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,908.98 : 29,863.47 = 5,117.91 : x
  2. Step 2: Convert to fraction form
    19,908.98/29,863.47 = 5,117.91/x
  3. Step 3: Cross multiply
    19,908.98x = 29,863.47 × 5,117.91
  4. Step 4: Simplify right side
    19,908.98x = 152,838,532.56
  5. Step 5: Solve for x
    x = 152,838,532.56/19,908.98
  6. Step 6: Final answer
    x = 7,676.86

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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.